Impacts of Consumption of Ultra-Processed Foods on the Maternal-Child Health: A Systematic Review

Association between consumption of ultra-processed foods and glycemic self-monitoring in women with gestational diabetes mellitus and their newborns: A cohort study

OBJECTIVE

To evaluate the association between the consumption of ultra-processed foods (UPFs) and outcomes of self-monitoring of blood glucose in pregnant woman with gestational diabetes mellitus (GDM) and the occurrence of hypoglycemia in their newborns.

METHODS

Prospective cohort study of pregnant woman with GDM who were followed up from the second trimester of pregnancy in high-risk prenatal care until the immediate postpartum period. Dietary intake was assessed using 24-h recalls and analyzed according to the Nova Classification. The glycemic profile was assessed by self-monitoring of fasting and postprandial capillary glycemia (pregnant) and by capillary glycemia in the first 48 h of life (neonate). Multilevel binary logistic regression models were used to assess the relationship between increasing UPF intake, considering the highest tertile of UPF consumption, and women's glycemic control and the occurrence of neonatal hypoglycemia.

RESULTS

UPFs provided 15% of calories consumed; 33.3% (n = 30) and 52.3% (n = 45) of the women had hyperglycemia in the second and third trimesters of pregnancy, respectively. After adjustment it was observed that UPF consumption had no significant association with maternal glycemic control but it showed a positive association with the occurrence of neonatal hypoglycemia (odds ratio [OR] 1.144, 95% confidence interval [CI] 1.037-1.262, p = 0.007).

CONCLUSION

These data reinforce the need to address food processing during high-risk prenatal care in order to help reduce the negative impacts of UPF consumption on the mother-infant dyad.

Pregnancy-related changes in microbiome are disrupted by obesogenic diet exposure: implications for offspring microbiome development

Pregnancy can alter gut microbiota composition, but effects of an obesogenic diet on both mother and offspring microbiome can be obscured by confounding factors. This study examined changes in gut microbiota composition prior to pregnancy, and across gestation and lactation in rat dams fed either a high-fat, high-sugar Cafeteria (Caf) diet or Chow. Microbiome development was assessed in male and female offspring weaned onto chow. Caf diet consumption during pregnancy increased weight gain and adiposity, with increased glucose and plasma leptin and lower folate and B12 levels indicating metabolic disturbance in dams. α- and β diversity measures in Caf-fed dams showed no change in Bacteroidetes and Firmicutes abundance across pregnancy compared with Chow dams, who showed reduced Firmicutes at gestation and mid-lactation. Offspring born to Caf versus Chow dams exhibited greater adiposity and plasma leptin at weaning (3 weeks); at 14 weeks these changes were only observed in males. Maternal Caf diet induced clear differences in β diversity in weanlings but not α diversity. Caf weanlings had lower plasma folate but higher B12 levels compared to chow counterparts. Maternal folate levels were positively associated with maternal and weanling gut microbiota, specifically OTU2 Romboutsia and OTU3_Lactobacillus relative abundance. SourceTracker analysis revealed similarities in the gut microbiota of Chow weanlings and maternal gut microbiota observed during lactation, whereas the microbiota of Caf weanlings was similar to the maternal gut microbiota during gestation. Maternal Caf diet had marginal effects on gut microbiota composition in adult offspring consuming regular chow.

How to evaluate ultra-processed food intake in pediatrics? UPF score: an easy alternative

BACKGROUND

The rising intake of ultra-processed foods (UPFs) among the pediatric population poses challenges due to the lack of precise and easily accessible tools to quantify such intake. This complicates understanding its effects on dietary quality and hampers the design of interventions to prevent the negative impact of UPF consumption on health. Given these challenges, it is essential to establish reliable methods to assess UPF consumption and its effect on diet.

OBJECTIVE

This study aims to determine the relationship between the UPF score and dietary characteristics.

METHODS

This cross-sectional study involved 353 participants aged 3 to 17. The methods included (1) collection of a three-day food record; (2) an evaluation of intake across five food groups; (3) categorization of intake frequency (0, 1, 2, or up to 3 times weekly); and (4) scoring by cumulative intake. Principal component analysis and regression models were utilized to assess diet associations with UPF score.

RESULTS

Higher cumulative UPF score groups were associated with increased intake of energy, fats, and sodium (p < 0.01); decreased fiber intake (p = 0.03), vegetables, fruits, and cereals (p < 0.05); higher sugar intake (p < 0.01); and reduced intake of vitamins A and C (p < 0.05). Four principal components, representing over 65% of sample variability, identified two healthy and two less healthy dietary patterns. Linear regression indicated higher fiber intake at lower UPF scores, declining with higher UPF scores.

CONCLUSIONS

The UPF score represents a useful tool for assessing UPF intake and dietary characteristics in pediatric populations.

Association of Maternal Consumption of Ultra-Processed Foods with Feeding Practices and Malnutrition in Breastfed Infants: A Cross-Sectional Study

Although the adverse health effects of consuming ultra-processed foods (UPFs) are well-documented, limited evidence exists on their impact during lactation. This study examined the association between maternal UPF consumption, feeding practices, and malnutrition in breastfed infants. A cross-sectional analysis was conducted with 111 mother-child pairs up to 150 days postpartum. Infant feeding practices were assessed using WHO indicators, and malnutrition was evaluated by length-for-age and BMI-for-age. Maternal dietary intake was estimated using two 24 h recalls, and UPF consumption was classified by the Nova classification. Dyads were grouped based on the highest UPF consumption quartile, and adjusted binary logistic regression was applied. UPFs accounted for 26% of the maternal diet on average. While 71.2% of infants were exclusively breastfed, one-third were overweight, and 11.7% were stunted. High maternal UPF consumption (>32% of energy) was associated with increased odds of malnutrition by BMI-for-age (wasting or overweight) (OR 3.38; 95% CI: 1.29-8.83) and stunting (OR 3.89; 95% CI: 1.04-14.58). Feeding practices showed no association. These findings highlight that maternal UPF consumption is associated with malnutrition odds in breastfed infants in the population assessed, emphasizing the need for dietary guidance during lactation to improve infant health outcomes.

Driving Research and Advocacy for Healthy Infant and Toddler Diets: The Infant and Toddler Foods Research Alliance

Early childhood (0-36 months) is a critical time for the development of healthy dietary behaviours. This paper describes the establishment of the Infant and Toddler Foods Research Alliance in Australia and New Zealand, along with the development of the Alliance's priorities to guide research and advocacy activities for improved nutrition, health and well-being outcomes in early childhood. The multi-disciplinary Alliance includes a membership of academics, practitioners and advocates working in the fields of infant and toddler food and nutrition across Australia and New Zealand. The Alliance undertook a priority setting process across a series of member meetings with identified priorities subsequently refined by a core membership working group. Three priority themes, along with three cross-cutting impact areas were identified. The priority themes include commercial foods and milks for infants and toddlers; health and care settings and systems; and support for parents and carers. The cross-cutting impact areas include building evidence, translating evidence, and advocacy. This provides a framework to guide research, practice and advocacy, identify research gaps, and advance action to improve nutrition, health and well-being outcomes for infants and toddlers.

Anaemia, overweight and abdominal obesity in mothers and children are associated with the food environment in socially vulnerable areas of a northeastern Brazilian capital

This study aimed to assess the association between community and consumer food environment (FE) measures and anaemia, overweight and abdominal obesity in mother-child dyads living in situations of social vulnerability. A cross-sectional study was carried out in 40 favelas in a capital city in the northeast of Brazil. The sample consisted of 1882 women and 665 children aged under 5 years. The community FE was assessed using a scale of perception of the availability of healthy food in the neighbourhood. Consumer FE was assessed by auditing 624 retail food stores using the AUDITNOVA instrument. This investigated various aspects of the food environment and evaluated the availability of 18 ultra-processed foods (UPF) most consumed by the Brazilian population available in these stores. The presence of overweight was assessed by measuring the weight and height of the mother and the child, and abdominal obesity was assessed by measuring the mother's waist circumference. The presence of anaemia in the mother and the child was assessed by measuring haemoglobin. Adjusted multilevel regression models were used to verify associations between the FE and malnutrition in mother-child dyads. Low perception of community FE was associated with higher risk of women being overweight (OR: 1.35; 95% CI: 1.05-1.73) and abdominally obese (OR: 1.38; 95% CI: 1.04-1.84); low health scores in food shops were associated with higher risk of abdominal obesity (OR: 1.35; 95% CI: 1.01-1.79) and anaemia (OR: 1.16; 95% CI: 1.02-1.98) in women and overweight in children (OR: 1.69; 95% CI: 1.05-2.73); and the high availability of UPF in retail shops was associated with increased odds of overweight (OR: 2.64; 95% CI: 1.61-4.33) and anaemia (OR: 2.11; 95% CI: 1.38-3.02) in children by 164% and 111%, respectively. It was observed that less healthy food environments are associated with greater chances of anaemia, overweight and abdominal obesity in mothers and children under 5 years in situations of social vulnerability in Brazil.

Consumption of ultra-processed foods is associated with dietary iron availability, anemia, and excess weight in socially vulnerable children

BACKGROUND & AIMS

Eating habits during childhood have undergone significant changes, with a notable increase in the consumption of ultra-processed foods (UPF). This situation deserves attention, given the close relationship between UPF and adverse health outcomes. This is due to the nutritional composition of UPF, which has high levels of health-critical nutrients such as sugar, fat, and sodium, thus compromising the overall quality of the diet. An excess of these nutrients can increase the risk of developing excess weight, nutritional deficiencies, and chronic diseases during childhood. Among the nutritional deficiencies is iron. This is due to the fact that UPF are not good sources of iron. This, combined with the fact that UPF is low in nutrients that help make iron more available, such as vitamin C, increases the risk of developing anemia. Therefore, this study aimed to assess the availability of iron, as well as the presence of anemia and excess weight in children living in situations of social vulnerability, and to determine their association with the consumption of UPF.

METHODS

This is a population-based cross-sectional study. Children aged between 6 and 59 months living in slums were included. The presence of excess weight was assessed by measuring weight and height, and the presence of anemia was determined by hemoglobin concentration, assessed using the HemoCue portable hemoglobinometer. A 24-h food recall was also used to assess the relative calorie intake of UFP and the dietary availability of iron using an algorithm. All statistical analyses were carried out using the statistical software Jamovi.

RESULTS

In this study, 443 children were included; 19.2 % were classified as with excess weight, and 55.6 % were anemic; the average absorbable iron content was 0.54 (SD ± 0.42) mg, and 39.2 % of the calories consumed came from UPF. The association analysis showed that children with calorie share relative to UPF had a decrease of -0.12 mg of bioavailable iron (β: -0.12; 95 % CI: -0.23; -0.01). It was also possible to identify that the higher calorie share of UPF increased their chances of being classified as with excess weight and anemic by up to 116 % (OR: 2.16; 95 % CI 1.05; 4.46) and 145 % (OR: 2.45; 95 % CI: 1.26; 4.78), respectively.

CONCLUSIONS

The relationship found between UPF consumption and the availability of iron in the diet, excess weight, and anemia calls for attention, especially in contexts of social vulnerability. These findings demonstrate the need for greater attention to nutrition in childhood to promote an adequate and healthy diet. This can help to change the nutritional and epidemiological panorama of the population, contributing to a better general state of health for future generations of adults.

Impact of ultra-processed food consumption during pregnancy on maternal and child health outcomes: A comprehensive narrative review of the past five years

BACKGROUND & AIMS

Ultra-processed foods (UPF) are increasingly prevalent in modern diets and are associated with negative health outcomes such as chronic diseases due to their high processing and low nutrient density. Despite the potential impact of UPF intake during pregnancy on maternal and child health, studies in this area are limited. Therefore, this narrative comprehensive review aimed to identify associations between UPF consumption, categorized by the NOVA system, during pregnancy and maternal and child health outcomes over the past five years (2019-2024).

METHODS

Following PRISMA-ScR criteria (2018), MedLine/PubMed, Scopus, and Embase databases were searched for articles on maternal and child health outcomes associated with UPF consumption categorized by the NOVA system during pregnancy, out of 767 studies identified, 22 were eligible.

RESULTS

Overall, high UPF consumption during pregnancy was positively associated with various adverse maternal-child outcomes, including gestational diabetes mellitus, gestational weight gain, poor glycemic control, negative nutrition biomarkers, inflammatory markers, and hypertensive disorders during pregnancy. It also negatively impacted child growth and development, and was associated with adiposity gain, potential adverse mental disorders, indicators of poor nutrition, and poor overall diet quality.

CONCLUSIONS

Despite the limited data, high consumption of UPF during pregnancy adversely affected the health outcomes of both mothers and children, impacting nutrition indicators and diet quality. Further studies on this topic are needed. Promoting healthy eating habits among pregnant women is crucial for achieving optimal health outcomes.

Exploring barriers and facilitators to feeding children with minimal or no "Junk Food": Insights from Mexican women

OBJECTIVE

This study aims to investigate the factors that promote or hinder the feeding of children with minimal or no ultra-processed products to inform the design of an mHealth strategy in Mexico and prevent child malnutrition among the economically vulnerable.

METHODS

An exploratory qualitative study was conducted, involving 24 in-depth face-to-face interviews with caregivers of children aged 24-59 months from both urban and rural communities. To analyze the data, we used thematic analysis and incorporated a few elements of grounded theory.

RESULTS

More barriers than facilitators were identified. Key barriers included: misconceptions and the widespread availability of junk food through an extensive network of grocery stores; neighbors and family gifting junk food; the association of soda with celebrations; the practice of indulging children with junk food; and the normalization of junk food consumption by both adults and children. Facilitators included: caregivers' awareness of the health risks associated with junk food; economic constraints limiting junk food purchases; support from husbands in regulating children's junk food consumption; the presence of a family member with diabetes; specific cultural beliefs about children's digestive health; as well as displacement of "healthy" foods that nourish children.

CONCLUSION

Based on our findings, we formulated recommendations for interventions at intrapersonal, interpersonal, organizational, community, and public policy levels to support healthier feeding practices for children.

Vitamin D and LC-PUFA and the Presence of Fetal Heart Defects-A Further Part of a Case-Control Study

INTRODUCTION

The relationship between diet of mothers, including supplementation of vitamin D and Long Chain Polyunsaturated Fatty Acids (LC-PUFA), and the prevalence of congenital heart defects (CHD) in the fetus has not been sufficiently studied. The aim of the study was to investigate the relationship between the intake of vitamin D and LC-PUFA by mother (from diet and with supplementation, including its time of implementation and applied dose), and the risk of CHD in the fetus.

METHODS

This was a case-control study with the participation of a total of 79 women with prenatally diagnosed CHD in the fetus and 121 women without CHD in the fetus. The Food Frequency Questionnaire (FFQ) was used with particular emphasis on vitamin D and DHA supplementation. A univariate logistic regression model was used to evaluate the relationship between selected dietary data and the risk of CHD in the fetus.

RESULTS

In the group of females without CHD in the fetus, the mean values of vitamin D intake, including supplementation, and dietary LC-PUFA + DHA from supplementation, were higher than in women with CHD in the fetus (41.3 ± 24.7 vs. 34.7 ± 27.8 μg; p = 0.02 and 831.0 ± 280.1 vs. 767.7 ± 287.6 mg; p = 0.008, for vitamin D and LC-PUFA + DHA respectively). No significant relationship was found between vitamin D intake (including supplementation) or between LC-PUFA + DHA supplementation by pregnant women, and the presence of CHD in their children.

CONCLUSIONS

It seems that increased maternal intake of vitamin D and LC-PUFA, including DHA, through supplementation, may protect fetus against CHD, but the relationship between the occurrence of CHD and diet in this area need further studies.

Ultra-processed Food Intake During Pregnancy and its Impact on Maternal Diet Quality and Weight Change: A Systematic Review of Observational Studies

PURPOSE OF REVIEW

Adequate and balanced nutrition during pregnancy is essential for both the mother's and fetus's health. The increased dietary intake of ultra-processed foods (UPFs) and their significant share in the diet negatively affects diet quality and gestational weight gain during pregnancy. The aim of this systematic review was to examine the association of UPFs consumption with diet quality and gestational weight change among healthy pregnant women, using data from observational studies (PROSPERO Identifier: CRD42023468269) from the last 10 years.

RECENT FINDINGS

A search was performed in Pubmed, Wiley, Scopus, and Web of Science, and studies published in english language were selected. Study selection and data extraction were made by determining the exclusion and eligible inclusion criterias according to the PECOS framework. Of the 12 studies included, 5 were longitudinal cohort studies and 7 were cross-sectional studies. On average, half of the energy in the participants' daily diets came from UPFs in 3 studies, but the energy share of UPFs was about 20-30% in the remainder studies. UPFs-enriched maternal diet was associated with less dietary intake of legumes, vegetables, fruits and protein sources (seafood and plant protein, total protein) and greater consumption of refined grains compared to those who consume less UPFs. In parallel, UPFs consumption was negatively associated with Healthy Eating Index. UPF intake during pregnancy has a negative impact on diet quality and gestational weight gain. Increasing awareness of UPFs during this period may reduce potential complications during pregnancy and fetal growth.

Evaluating the impact of the universal infant free school meal policy on the ultra-processed food content of children's lunches in England and Scotland: a natural experiment

BACKGROUND

The Universal Infant Free School Meal (UIFSM) policy was introduced in 2014/15 in England and Scotland for schoolchildren aged 4-7 years, leading to an increase in school meal uptake. UK school meals are known to be healthier and less industrially processed than food brought from home (packed lunches). However, the impact of the UIFSM policy on the quantity of ultra-processed food (UPF) consumed at school during lunchtime is unknown. This study aimed to evaluate the impact of the UIFSM policy on lunchtime intakes of UPF in English and Scottish schoolchildren.

METHODS

Data from the UK National Diet and Nutrition Survey (2008-2019) were used to conduct a difference-in-difference (DID) natural experiment. Outcomes included school meal uptake and the average intake of UPF (% of total lunch in grams (%g) and % total lunch in Kcal (%Kcal)) during school lunchtime. The change in the outcomes before and after the introduction of UIFSM (September 2014 in England, January 2015 in Scotland) in the intervention group (4-7 years, n = 835) was compared to the change in an unexposed control group (8-11 years, n = 783), using linear regression. Inverse probability weights were used to balance characteristics between intervention and control groups.

RESULTS

Before UIFSM, school meal uptake and consumption of UPFs were similar in the intervention and control groups. The DID model showed that after UIFSM, school meal uptake rose by 25%-points (pp) (95% CI 14.2, 35.9) and consumption of UPFs (%g) decreased by 6.8pp (95% CI -12.5,-1.0). Analyses indicated this was driven by increases in minimally processed dairy and eggs, and starchy foods, and decreases in ultra-processed salty snacks, bread and drinks. The differences were larger in the lowest-income children (-19.3 UPF(%g); 95% CI -30.4,-8.2) compared to middle- and high-income children. Analyses using UPF %Kcal had similar conclusions.

CONCLUSIONS

This study builds on previous evidence suggesting that UIFSM had a positive impact on dietary patterns, showing that it reduced consumption of UPFs at school lunchtime, with the greatest impact for children from the lowest-income households. Universal free school meals could be an important policy for long term equitable improvements in children's diet.

Periconceptional maternal intake of ultra-processed foods, energy and macronutrients the impact on imaging markers of early utero-placental vascular development: The rotterdam periconception cohort

BACKGROUND & AIMS

The quantity and quality of maternal nutrition in the periconception period is an important determinant for embryonic and foetal development and subsequent pregnancy course and outcome. The intake of ultra-processed foods (UPF) has increased worldwide and adverse health outcomes have been reported. However, the impact of UPF intake on the placenta, essential for prenatal nourishment, is unknown. Therefore, we aim to investigate associations between the periconceptional maternal intake of UPF, energy and related macronutrients, and first-trimester utero-placental vascular development.

METHODS

We included 214 ongoing pregnancies in the Virtual Placenta study, a subcohort of the Rotterdam periconception cohort. At enrollment, participants filled out a food frequency questionnaire from which we calculated the average daily energy from UPF, total energy intake and macronutrient intake from UPF. At 7-9-11 weeks of gestation, we performed sequential three-dimensional power Doppler ultrasounds of the first-trimester utero-placental vasculature. Virtual Organ Computer-aided AnaLysis (VOCAL) software, Virtual Reality segmentation and a skeletonization algorithm were applied to measure placental volume (PV), utero-placental vascular volume (uPVV) and generate the utero-placental vascular skeleton (uPVS). Absolute vascular morphology was quantified by assigning a morphologic characteristic to each voxel in the uPVS (end-, bifurcation-, crossing- or vessel point) and used to calculate density of vascular branching. Linear mixed models adjusted for confounders were used to investigate associations between maternal intake of UPF, total energy and macronutrients from UPF and PV, uPVV and uPVS characteristics.

RESULTS

Energy intake from UPF and total energy intake were not consistently associated with imaging markers of utero-placental vascular development. Higher carbohydrate intake of 10 g/day from UPF was associated with increased uPVS trajectories (end points (β = 0.34, 95%CI = 0.07; 0.61), bifurcation points (β = 0.38, 95%CI = 0.05; 0.70), vessel points (β = 0.957, 95%CI = 0.21; 1.71). No associations were observed with PV.

CONCLUSIONS

Against our hypothesis, periconceptional maternal intake of UPF and total energy were not convincingly associated with impaired first-trimester utero-placental vascular development. Remarkably, the increased intake of carbohydrates from UPF, which is often considered 'unhealthy', is positively associated with first-trimester utero-placental vascular development. Given the complexity of diet, further research should elucidate what underlies these findings to be able to interpret how nutrition may impact utero-placental vascular development in early pregnancy.

CLINICAL TRIAL NUMBER

This study is registered at the Dutch Trial Register (NTR6854).

Patterns of complementary feeding introduction and associated factors in a cohort of Brazilian infants

BACKGROUND

Understanding the timing of food introduction in infants is essential for promoting optimal complementary feeding practices. However, existing studies often rely on cross-sectional data, limiting the ability to capture age-specific patterns. We aimed to describe food introduction during the first year of life by identifying patterns related to age at food introduction and associated factors in a cohort of Brazilian infants.

METHODS

Data were collected through standardized questionnaires administered to mothers via face-to-face interviews during the infant's first month of life and at 3, 6, 9, and 12 months of age. Additionally, two telephone interviews were conducted at 2 and 4 months of age. Information regarding food intake was assessed using a list of 48 foods, with two key aspects recorded: whether the food was introduced (yes/no) and the age at introduction. To define food introduction patterns, we employed k-means cluster analysis. Hierarchical Poisson multiple regression was employed to examine the associations between sociodemographic, biological, and healthcare factors and patterns of food introduction.

RESULTS

Three distinct patterns were identified and named according to their main characteristics: Pattern 1 - "Low Infant Formula and Timely CF Introduction"; Pattern 2 - "High Infant Formula and Early CF Introduction"; and Pattern 3 - "High Infant Formula and Later Ultra-processed Food Introduction". Breastfeeding at six months showed a positive association with Pattern 1 (PR = 1.40; 95% CI = 1.10-1.80), while bottle use at four months was negatively associated with Pattern 1 (PR = 0.68; 95% CI = 0.53-0.87). No variables studied exhibited an association with Pattern 2. For Pattern 3, higher prevalences were observed among children whose mothers were aged < 20 years (PR = 1.54; 95% CI = 1.13-2.01) or > 34 years (PR = 1.42; 95% CI = 1.04-1.93). Not receiving guidance on the recommended duration of breastfeeding and complementary feeding during prenatal care was associated with a higher prevalence of children in this pattern (PR = 1.35; 95% CI = 1.01-1.80).

CONCLUSIONS

We identified three distinct patterns of age at food introduction in the study population, although none perfectly aligned with Brazilian or WHO dietary recommendations. These findings underscore the need for targeted interventions to promote timely and healthy complementary feeding practices in Brazilian infants.

Food poverty among children aged 6-59 months in Brazil: results from the Brazilian National Survey on Child Nutrition (ENANI-2019)

OBJECTIVE

To describe the prevalence of food poverty according to dimensions of socio-economic inequality and the food groups consumed by Brazilian children.

DESIGN

Dietary data from a structured qualitative questionnaire collected by the Brazilian National Survey on Child Nutrition (ENANI-2019) were used. The new UNICEF indicator classified children who consumed 3-4 and <3 out of the eight food groups as living in moderate and severe food poverty, respectively. The prevalence of consumption of each food group and ultra-processed foods (UPF) was estimated by level of food poverty according to age categories (6-23; 24-59 months). The most frequent combinations of food groups consumed by children living in severe food poverty were calculated. Prevalence of levels of food poverty were explored according to socio-economic variables.

SETTING

123 municipalities of the five Brazilian macro-regions.

PARTICIPANTS

12 582 children aged 6-59 months.

RESULTS

The prevalence of moderate and severe food poverty was 32·5 % (95 % CI 30·1, 34·9) and 6·0 % (95 % CI 5·0, 6·9), respectively. Children whose mother/caregiver had lower education (<8 years) and income levels (per capita minimum wage <¼) had the highest severe food poverty prevalence of 8·3 % (95 % CI 6·2, 10·4) and 7·5 % (95 % CI 5·6, 9·4), respectively. The most consumed food groups among children living in food poverty in all age categories were 'dairy products', 'grains, roots, tubers, and plantains' and 'ultra-processed foods'.

CONCLUSION

Food poverty prevalence was high among Brazilian children. A significant occurrence of milk consumption associated with grains and a considerable prevalence of UPF consumption were found among those living in severe food poverty.

Ultraprocessing and presence of additives in commercially produced complementary foods in seven Southeast Asian countries: a cross-sectional study

BACKGROUND

There has been a dramatic shift in food systems, and the consumption of commercially processed and packaged foods has grown globally, including among older infants and young children. Many of these products are ultraprocessed and contain additives, with concerning implications for the health and nutrition of children.

OBJECTIVES

The study objectives were as follows: 1) to assess the levels of processing among different commercially produced complementary food product (CPCF) categories marketed in the Southeast Asia region, 2) to compare the nutrient content of CPCF products across levels of processing, and 3) to assess the types of additives present in different CPCF categories.

METHODS

This cross-sectional study involved secondary analysis of a cross-sectional dataset of product label information from CPCF purchased in 2021 in Cambodia, Indonesia, Lao People's Democratic Republic, Malaysia, Philippines, Thailand, and Viet Nam. Ingredient lists were reviewed to determine the level of processing-based on the Nova classification-and the presence of additives. Nutrient declaration panels were reviewed to determine total sugar, sodium, and total fat.

RESULTS

Nearly half of all CPCF were ultraprocessed, with total sugar and sodium content significantly higher among ultraprocessed CPCF than unprocessed/minimally processed products. Almost half of CPCF contained additives, with a median of 6 per product. More than 30% of all CPCF made use of cosmetic additives to enhance the products' appearance, flavor, or texture, with emulsifiers, colors, and thickeners the most prevalent. Almost one-third of products contained additives not permitted in Codex Alimentarius standards and guidelines for CPCF.

CONCLUSIONS

Findings from this study should alert national governments to both adopt and ensure enforcement of Codex guidance on additives and regulations enacted to encourage lower levels of processing for CPCF.

Association between breast feeding and food consumption according to the degree of processing in Brazil: a cohort study

BACKGROUND

The benefits of breast feeding may be associated with better formation of eating habits beyond childhood. This study was designed to verify the association between breast feeding and food consumption according to the degree of processing in four Brazilian birth cohorts.

METHODS

The duration of exclusive, predominant and total breast feeding was evaluated. The analysis of the energy contribution of fresh or minimally processed foods (FMPF) and ultra-processed foods (UPF) in the diet was evaluated during childhood (13-36 months), adolescence (11-18 years) and adulthood (22, 23 and 30 years).

RESULTS

Those who were predominantly breastfed for less than 4 months had a higher UPF consumption (β 3.14, 95% CI 0.82 to 5.47) and a lower FMPF consumption (β -3.47, 95% CI -5.91 to -1.02) at age 22 years in the 1993 cohort. Exclusive breast feeding (EBF) for less than 6 months was associated with increased UPF consumption (β 1.75, 95% CI 0.25 to 3.24) and reduced FMPF consumption (β -1.49, 95% CI -2.93 to -0.04) at age 11 years in the 2004 cohort. In this same cohort, total breast feeding for less than 12 months was associated with increased UPF consumption (β 1.12, 95% CI 0.24 to 2.19) and decreased FMPF consumption (β -1.13, 95% CI -2 .07 to -0.19). Children who did not receive EBF for 6 months showed an increase in the energy contribution of UPF (β 2.36, 95% CI 0.53 to 4.18) and a decrease in FMPF (β -2.33, 95% CI -4 .19 to -0.48) in the diet at 13-36 months in the 2010 cohort. In this cohort, children who were breastfed for less than 12 months in total had higher UPF consumption (β 2.16, 95% CI 0.81 to 3.51) and lower FMPF consumption (β -1.79, 95% CI -3.09 to -0.48).

CONCLUSION

Exposure to breast feeding is associated with lower UPF consumption and higher FMPF consumption in childhood, adolescence and adulthood.

Early introduction of ultra-processed foods is associated with overweight and anaemia in socially vulnerable Brazilian children

This study aimed to evaluate the early introduction of ultra-processed foods (UPF) and identify its association with overweight and anaemia in Brazilian children living in a situation of social vulnerability. A population-based cross-sectional study was conducted in a Brazilian capital. Children aged 12-59 months were included. The presence of overweight and anaemia was evaluated, as well as the introduction of twelve different UPF in children's first year of life. Association analysis was performed using Poisson regression, with robust estimates of variances. A total of 561 children were studied; 85·5 % had consumed at least one UPF evaluated in the first year of life; 19·1 % were overweight and 52·0 % were anaemic. Adjusted multivariate analyses identified that the early introduction of soft drinks (Prevalence Ratio (PR) = 1·18, 95 % CI (1·02, 1·38)), packaged snacks (PR = 1·17, 95 % CI (1·05, 1·30)) and powdered soft drinks (PR = 1·36, 95 % CI (1·16, 1·60)) increased the likelihood of children being overweight, and the early introduction of chocolate drink (PR = 1·25, 95 % CI (1·02, 1·53)) increased the likelihood of them being anaemic, when comparing children who consumed these UPF before reaching 1 year of age with those who consumed these foods at 12 months of age or older. From the results found, one can see the existing relationship between the early introduction of UPF with overweight and anaemia, being necessary to intensify public health policies to combat malnutrition, focusing on the promotion of proper and healthy eating, especially during the phase of food introduction, focusing on the population living in socially vulnerable situations.

The Double Burden of Malnutrition is Associated with Continued Breastfeeding and Early Consumption of Ultra-Processed Drinks in Socially Vulnerable Brazilian Children

This study aimed to assess the association between the double burden of malnutrition (DBM) with continued breastfeeding and the early introduction of ultra-processed drinks in children living in situations of social vulnerability. This cross-sectional population-based study was carried out in a capital city in the Northeast of Brazil, which included 561 children. It was observed that introducing soft drinks into the child's diet during the first year of life was directly associated with DBM but indirectly with continuous breastfeeding for 12 or more months. These results indicate paths that can be followed to reverse the current scenario.

Prevalence and correlates of childhood anemia in the MINA-Brazil birth cohort study

OBJECTIVE

This study aimed to describe the prevalence and predictors of childhood anemia in an Amazonian population-based birth cohort study.

METHODS

Prevalence of maternal anemia was estimated at delivery (hemoglobin [Hb] concentration < 110 g/L) in women participating in the MINA-Brazil birth cohort study and in their children, examined at ages one, two (Hb < 110 g/L), and five (Hb < 115 g/L). Moreover, ferritin, soluble transferrin receptor, and C-reactive protein concentrations were measured in mothers at delivery and in their 1- and 2-year-old children to estimate the prevalence of iron deficiency and its contribution to anemia, while adjusting for potential confounders by multiple Poisson regression analysis (adjusted relative risk [RRa]).

RESULTS

The prevalence 95% confidence interval (CI) of maternal anemia, iron deficiency, and iron-deficiency anemia at delivery were 17.3% (14.0-21.0%), 42.6% (38.0-47.2%), and 8.7% (6.3-11.6)%, respectively (n = 462). At one year of age (n = 646), 42.2% (38.7-45.8%) of the study children were anemic, 38.4% (34.6-42.3%) were iron-deficient, and 26.3 (23.0-29.9) had iron-deficiency anemia. At two years of age (n = 761), these values decreased to 12.8% (10.6-15.2%), 18.1% (15.5-21.1%), and 4.1% (2.8-5.7%), respectively; at five years of age (n = 655), 5.2% (3.6-7.2%) were anemic. Iron deficiency (RRa = 2.19; 95%CI: 1.84-2.60) and consumption of ultra-processed foods (UPF) (RRa = 1.56; 95%CI: 1.14-2.13) were significant contributors to anemia at 1 year, after adjusting for maternal schooling. At 2 years, anemia was significantly associated with maternal anemia at delivery (RRa: 1.67; 95%CI: 1.17-2.39), malaria since birth (2.25; 1.30-3.87), and iron deficiency (2.15; 1.47-3.15), after adjusting for children's age and household wealth index.

CONCLUSIONS

Anemia continues to be highly prevalent during pregnancy and early childhood in the Amazon. Public health policies should address iron deficiency, UPF intake, maternal anemia, and malaria to prevent and treat anemia in Amazonian children.

Australian Stakeholder Perspectives on Healthier Retail Food Environments for Toddlers-The Era of "Band Aids and Small Inroads"

Background

A healthy diet in young children is crucial for optimal growth and development. However, many toddlers (1-3 y) consume suboptimal diets, and as a result, are at a high risk of experiencing negative health outcomes. Moreover, minimal progress has been made to improve the healthiness of retail food environments for toddlers to date despite the potential and advocacy for the issue.

Objectives

To gain insight into stakeholder perceptions and opinions on the healthiness of Australian retail food environments for toddlers, as well as perspectives on the options and barriers to improve their healthiness.

Methods

Qualitative, online study utilizing semi-structured individual interviews with 27 key stakeholders from food industry, academia, nongovernment organizations, public health, and government in Australia.

Results

Most stakeholders agreed that retail food environments for toddlers were not health promoting. Stakeholders identified that a multifaceted approach including nutrition education and strong government mandated regulation were essential to improve the healthiness of retail food environments for toddlers. Interviews also highlighted the main perceived barriers to progress, and reasons for policy inaction in this area are the food industry and government support. Many stakeholders were concerned that child health is being undermined due to the government favoring business needs over public health.

Conclusions

Stakeholders in this study overwhelmingly agreed that there is more that can and should be done to create health promoting retail food environments for toddlers in Australia. Stakeholders identified a range of strategies that can be used to improve the healthiness of toddler food environments, but advocacy efforts are being undermined due to government inaction. Stakeholders believed that strong governance is required to create equitable, sustainable healthy retail food environments for young children. Improving the healthiness of retail food environments for young children will not only reduce diet related disease across the lifespan but will help to address financial and societal costs of a poor diet.

Associations Between Household Frequency of Cooking Dinner and Ultraprocessed Food Consumption and Dietary Quality Among US Children and Adolescents

Introduction: Dietary quality is poor and intake of ultraprocessed foods (UPFs) is high among children and adolescents in the United States. Low dietary quality and high UPF intake are associated with obesity and higher risk of diet-related chronic diseases. It is unknown whether household cooking behavior is related to improved dietary quality and lower consumption of UPFs among US children and adolescents. Methods: Nationally representative data from the 2007-2010 National Health and Nutrition Examination Survey (n = 6032 children and adolescents ≤19 years of age) were used to examine the relationships between household cooking frequency of evening meals and children's dietary quality and UPF intake using multivariate linear regression models adjusted for sociodemographics. Two 24-hour diet recalls were used to assess UPF intake and dietary quality [Healthy Eating Index-2015 (HEI-2015)]. Food items were categorized according to Nova classification to obtain the UPF percent of total energy intake. Results: A higher household frequency of cooking dinner was associated with lower UPF intake and higher overall dietary quality. Compared to children in households cooking dinner 0-2 times per week, children in households cooking dinner 7 times/week had lower intake of UPFs [β = -6.30, 95% confidence interval (CI) -8.81 to -3.78, p < 0.001] and marginally higher HEI-2015 scores (β = 1.92, 95% CI -0.04 to 3.87, p = 0.054). The trends toward lower UPF intake (p-trend <0.001) and higher HEI-2015 scores (p-trend = 0.001) with increasing cooking frequency were significant. Conclusions: In this nationally representative sample of children and adolescents, more frequent cooking at home was associated with lower intake of UPFs and higher HEI-2015 scores.

What is the purpose of ultra-processed food? An exploratory analysis of the financialisation of ultra-processed food corporations and implications for public health

BACKGROUND

In recent decades there has been a global rise in consumption of ultra-processed foods (UPFs) to the detriment of population health and the environment. Large corporations that have focused heavily on low-cost manufacturing and extensive marketing of UPFs to maximise profits have driven this dietary transition. The same corporations claim to serve the interests of multiple 'stakeholders', and that they are contributing to sustainable development. This paper aimed to test these claims by examining the degree to which UPF corporations have become 'financialised', focusing on the extent to which they have prioritised the financial interests of their shareholders relative to other actors, as well as the role that various types of investors have played in influencing their governance. Findings were used to inform discussion on policy responses to improve the healthiness of population diets.

METHODS

We adopted an exploratory research design using multiple methods. We conducted quantitative analysis of the financial data of U.S. listed food and agricultural corporations between 1962 and 2021, share ownership data of a selection of UPF corporations, and proxy voting data of a selection of investors between 2012 and 2022. We also conducted targeted narrative reviews using structured and branching searches of academic and grey literature.

RESULTS

Since the 1980s, corporations that depend heavily on manufacturing and marketing UPFs to generate profits have been increasingly transferring money to their shareholders relative to their total revenue, and at a level considerably higher than other food and agricultural sectors. In recent years, large hedge fund managers have had a substantial influence on the governance of major UPF corporations in their pursuit of maximising short-term returns. In comparison, shareholders seeking to take steps to improve population diets have had limited influence, in part because large asset managers mostly oppose public health-related shareholder proposals.

CONCLUSIONS

The operationalisation of 'shareholder primacy' by major UPF corporations has driven inequity and undermines their claims that they are creating 'value' for diverse actors. Measures that protect population diets and food systems from the extractive forces of financialisation are likely needed as part of efforts to improve the healthiness of population diets.

Food for thought or food for emotions? An analysis of marketing strategies in television food advertising seen by children in Colombia

OBJECTIVE

To establish the relationship between the marketing strategies and nutritional quality of foods and beverages promoted in television food advertisements (TV ads) seen by Colombian child audiences overall and based on child gender and socio-economic strata (SES).

DESIGN

A quantitative content analysis of marketing appeals was combined with nutritional data of the food products advertised and matched with TV audience ratings data for each food and beverage ads for Colombian children between 4 and 11 years.

SETTING

All beverages and foods TV ads cable or over-the-air channels in Colombia in 2017.

PARTICIPANTS

N/A.

RESULTS

Compared with rational appeals (e.g. freshness, health or nutrition messages), emotional appeals (referencing or depicting human senses or emotions, e.g. using cartoons to suggest fun) were more frequently used in the TV ads most viewed by Colombian children. Female children and children in lower SES tended to be more exposed to emotional appeals in TV ads than their male or higher SES counterparts. Furthermore, TV ads using more emotional appeals tended to be for products high in problematic nutrients.

CONCLUSION

The findings of this study highlight the need to implement statutory measures to reduce the deleterious effect of food marketing on children.

Nutrition transition in Brazilian children under 5 years old from 2006 to 2019

This manuscript aims to report the nutrition transition in Brazilian children under 5 years old from 2006 to 2019. Microdata from the Brazilian National Survey on Demography and Health of Women and Children (PNDS 2006) and the Brazilian National Survey on Child Nutrition (ENANI-2019) were analyzed. The indicators considered were: micronutrient status (anemia and vitamin A deficiency), anthropometric status (stunting and excessive weight), and breastfeeding practice (exclusive breastfeeding among children < 6 months and continued breastfeeding among children 12-23 months). We also analyzed minimum dietary diversity (MDD), consumption of ultra-processed foods, consumption of meat or eggs, and not consuming fruits or vegetables in children 6-59 months of age only for ENANI-2019. Equiplot charts were generated according to geographic region, maternal schooling level, and maternal race/skin color. From 2006 to 2019, the prevalence rates of anemia and vitamin A deficiency decreased from 20.5% to 10.1% and 17.2% to 6%, respectively. The prevalence of stunting remained at 7%, and excessive weight rates increased from 6% to 10.1%. The prevalence of exclusive breastfeeding among children < 6 months increased from 38.6% to 45.8%, and of continued breastfeeding among children 12-23 months from 34.6% to 43.6%. In 2019, 61.5% of children achieved the MDD, 88.8% consumed ultra-processed foods, 83.1% consumed meat or egg, and 25.7% did not consume fruits or vegetables the day before the survey. Trends of decreased micronutrient deficiencies, increased breastfeeding, and excessive weight rates, as well as reductions in disparities related to geographic region, maternal schooling level, and maternal race/skin color, were observed for most of the indicators.

Relationship between diet quality and biochemical profile in Brazilian overweight pregnant women

OBJECTIVE

The aim of this study was to evaluate the relationship between the Adapted Diet Quality Index for Pregnant Women (IQDAG) and the biochemical profile of overweight pregnant adult women.

METHODS

This was a cross-sectional study, using baseline data from a randomized controlled clinical trial conducted with 239 pregnant women in Brazil. The usual diet was obtained through two dietary recalls and the Multiple Source Method. Diet quality was assessed using the IQDAG, which has nine components: eight for adequacy and one for moderation. Fasting blood glucose, insulin, total cholesterol, low-density lipoprotein, high-density lipoprotein, triacylglycerols, and C-reactive protein were measured to evaluate the biochemical profile. Adjusted linear regression models were used to evaluate the association between the score of the IQDAG (and its components) and the biochemical profile. The significance level considered was P ≤ 0.05.

RESULTS

The mean index score was 75.4 points. An inverse association was observed between the consumption of legumes and total cholesterol level (β = -4.76; 95% confidence interval [CI], -9.16 to -0.35; P = 0.03) and low-density lipoprotein (β = -4.13; 95% CI, -7.56 to -0.69; P = 0.02), and a direct association between calcium intake and total cholesterol (β = 0.02; 95% CI, 0.002-0.41; P = 0.03). No other associations were observed between the investigated variables.

CONCLUSIONS

The data from the present study suggest that higher consumption of legumes is associated with lower levels of total cholesterol and low-density lipoprotein. A higher intake of calcium was directly associated with total cholesterol . Further research is required to fully understand how diet quality affects pregnant women's biochemical profiles and what that means for the health of the mother and the fetus.

Maternal emulsifier consumption programs offspring metabolic and neuropsychological health in mice

Modern lifestyle is associated with a major consumption of ultra-processed foods (UPF) due to their practicality and palatability. The ingestion of emulsifiers, a main additive in UPFs, has been related to gut inflammation, microbiota dysbiosis, adiposity, and obesity. Maternal unbalanced nutritional habits during embryonic and perinatal stages perturb offspring's long-term metabolic health, thus increasing obesity and associated comorbidity risk. However, whether maternal emulsifier consumption influences developmental programming in the offspring remains unknown. Here, we show that, in mice, maternal consumption of dietary emulsifiers (1% carboxymethyl cellulose (CMC) and 1% P80 in drinking water), during gestation and lactation, perturbs the development of hypothalamic energy balance regulation centers of the progeny, leads to metabolic impairments, cognition deficits, and induces anxiety-like traits in a sex-specific manner. Our findings support the notion that maternal consumption of emulsifiers, common additives of UPFs, causes mild metabolic and neuropsychological malprogramming in the progeny. Our data call for nutritional advice during gestation.

Factors associated with ultra-processed foods consumption in a cohort of Brazilian pregnant women

Nutrition during pregnancy is essential for the health of the pregnant woman, the development of the fetus, and the prevention of complications related to pregnancy and the postpartum period. This study described the factors associated with high consumption of ultra-processed foods among pregnant women. This prospective cohort study was performed from February 2016 to November 2019 in two health units in the city of Rio de Janeiro, Brazil, with data from 344 pregnant women. The first interview was conducted in the prenatal visit at less than 20 gestational weeks, the second at 34 gestational weeks, and the third at two months postpartum. Diet was assessed in the last interview using a food frequency questionnaire, and food items were classified according to NOVA. The percentage of ultra-processed foods consumption was estimated by tertile distribution, and the third tertile represented the highest consumption. Based on the hierarchical analysis model, the associations between ultra-processed foods consumption and sociodemographic, reproductive health, pregestational, behavioral, and pregnancy variables were assessed using a multinomial logistic regression model. Older women had lower ultra-processed foods consumption (OR = 0.33; 95%CI: 0.15-0.71). Few years of schooling (up to 7 years; OR = 5.58; 95%CI: 1.62-19.23), history of a previous childbirth (OR = 2.48; 95%CI: 1.22-5.04), history of two or more previous childbirths (OR = 7.53; 95%CI: 3.02-18.76), and no history of regular physical activity before pregnancy (OR = 2.40; 95%CI: 1.31-4.38) were risk factors. The identification of risk and protection factors allows for the establishment of control measures and encouragement of healthy practices during prenatal care.

Impact of Ultra-Processed Food Consumption on Quality of Diet among Brazilian Pregnant Women Assisted in Primary Health Care

The quality of diet and nutritional status during pregnancy are crucial to optimize maternal and fetal health. Ultra-processed foods (UPFs) are increasingly prevalent in pregnancy groups despite being nutritionally unbalanced and associated with adverse perinatal outcomes. This cross-sectional study, conducted with data from 229 pregnant women, aimed to investigate the association between UPFs consumption and dietary nutrient intake of pregnant women assisted by Primary Health Care (PHC) in Federal District (DF), Brazil. Food consumption was assessed through two non-consecutive 24-h food records and categorized by the extent of processing using the NOVA classification. Multivariate linear regression models were used to analyze the association between the quintiles of UPF consumption and the total energy and nutrients intake. Mean daily energy intake was 1741 kcal, with 22.6% derived from UPFs. Greater UPF consumption was associated with reduced intake of unprocessed and minimally processed food. The highest quintile of UPFs was positively associated with higher total energy, trans fat, and sodium intake; and inversely associated with the diet content of protein, fiber, iron, magnesium, potassium, copper, zinc, selenium, and folate. Greater UPFs intake negatively impacts the nutritional quality of the diet and impoverishes the nutrient intake of pregnant women. Reducing UPF consumption may broadly improve dietary guidelines adherence in pregnant women and promote maternal and neonatal health.

Dietary Advice to Support Glycaemic Control and Weight Management in Women with Type 1 Diabetes during Pregnancy and Breastfeeding

In women with type 1 diabetes, the risk of adverse pregnancy outcomes, including congenital anomalies, preeclampsia, preterm delivery, foetal overgrowth and perinatal death is 2-4-fold increased compared to the background population. This review provides the present evidence supporting recommendations for the diet during pregnancy and breastfeeding in women with type 1 diabetes. The amount of carbohydrate consumed in a meal is the main dietary factor affecting the postprandial glucose response. Excessive gestational weight gain is emerging as another important risk factor for foetal overgrowth. Dietary advice to promote optimized glycaemic control and appropriate gestational weight gain is therefore important for normal foetal growth and pregnancy outcome. Dietary management should include advice to secure sufficient intake of micro- and macronutrients with a focus on limiting postprandial glucose excursions, preventing hypoglycaemia and promoting appropriate gestational weight gain and weight loss after delivery. Irrespective of pre-pregnancy BMI, a total daily intake of a minimum of 175 g of carbohydrate, mainly from low-glycaemic-index sources such as bread, whole grain, fruits, rice, potatoes, dairy products and pasta, is recommended during pregnancy. These food items are often available at a lower cost than ultra-processed foods, so this dietary advice is likely to be feasible also in women with low socioeconomic status. Individual counselling aiming at consistent timing of three main meals and 2-4 snacks daily, with focus on carbohydrate amount with pragmatic carbohydrate counting, is probably of value to prevent both hypoglycaemia and hyperglycaemia. The recommended gestational weight gain is dependent on maternal pre-pregnancy BMI and is lower when BMI is above 25 kg/m2. Daily folic acid supplementation should be initiated before conception and taken during the first 12 gestational weeks to minimize the risk of foetal malformations. Women with type 1 diabetes are encouraged to breastfeed. A total daily intake of a minimum of 210 g of carbohydrate is recommended in the breastfeeding period for all women irrespective of pre-pregnancy BMI to maintain acceptable glycaemic control while avoiding ketoacidosis and hypoglycaemia. During breastfeeding insulin requirements are reported approximately 20% lower than before pregnancy. Women should be encouraged to avoid weight retention after pregnancy in order to reduce the risk of overweight and obesity later in life. In conclusion, pregnant women with type 1 diabetes are recommended to follow the general dietary recommendations for pregnant and breastfeeding women with special emphasis on using carbohydrate counting to secure sufficient intake of carbohydrates and to avoid excessive gestational weight gain and weight retention after pregnancy.

Maternal consumption of ultra-processed foods and subsequent risk of offspring overweight or obesity: results from three prospective cohort studies

OBJECTIVE

To assess whether maternal ultra-processed food intake during peripregnancy and during the child rearing period is associated with offspring risk of overweight or obesity during childhood and adolescence.

DESIGN

Population based prospective cohort study.

SETTING

The Nurses' Health Study II (NHSII) and the Growing Up Today Study (GUTS I and II) in the United States.

PARTICIPANTS

19 958 mother-child (45% boys, aged 7-17 years at study enrollment) pairs with a median follow-up of 4 years (interquartile range 2-5 years) until age 18 or the onset of overweight or obesity, including a subsample of 2925 mother-child pairs with information on peripregnancy diet.

MAIN OUTCOME MEASURES

Multivariable adjusted, log binomial models with generalized estimating equations and an exchangeable correlation structure were used to account for correlations between siblings and to estimate the relative risk of offspring overweight or obesity defined by the International Obesity Task Force.

RESULTS

2471 (12.4%) offspring developed overweight or obesity in the full analytic cohort. After adjusting for established maternal risk factors and offspring's ultra-processed food intake, physical activity, and sedentary time, maternal consumption of ultra-processed foods during the child rearing period was associated with overweight or obesity in offspring, with a 26% higher risk in the group with the highest maternal ultra-processed food consumption (group 5) versus the lowest consumption group (group 1; relative risk 1.26, 95% confidence interval 1.08 to 1.47, P for trend<0.001). In the subsample with information on peripregnancy diet, while rates were higher, peripregnancy ultra-processed food intake was not significantly associated with an increased risk of offspring overweight or obesity (n=845 (28.9%); group 5 v group 1: relative risk 1.17, 95% confidence interval 0.89 to 1.53, P fortrend=0.07). These associations were not modified by age, sex, birth weight, and gestational age of offspring or maternal body weight.

CONCLUSIONS

Maternal consumption of ultra-processed food during the child rearing period was associated with an increased risk of overweight or obesity in offspring, independent of maternal and offspring lifestyle risk factors. Further study is needed to confirm these findings and to understand the underlying biological mechanisms and environmental determinants. These data support the importance of refining dietary recommendations and the development of programs to improve nutrition for women of reproductive age to promote offspring health.

Maternal Consumption of Ultra-Processed Foods-Rich Diet and Perinatal Outcomes: A Systematic Review and Meta-Analysis

The consumption of ultra-processed food (UPF)-rich diets represents a potential threat to human health. Considering maternal diet adequacy during pregnancy is a major determinant for perinatal health outcomes, this study aimed to systematically review and meta-analyze studies investigating the association between maternal consumption of a UPF-rich diet and perinatal outcomes. Conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, five electronic databases and gray literature using Google Scholar and ProQuest Dissertations and Theses Global were searched up to 31 May 2022. No restrictions were applied on language and publication date. Two reviewers independently conducted the study selection and data extraction process. Meta-analysis was conducted according to the random-effects model. In total, 61 studies were included in the systematic review and the overall population comprised 698,803 women from all gestational trimesters. Meta-analysis of cohort studies showed that maternal consumption of UPF-rich diets was associated with an increased risk of gestational diabetes mellitus (odds ratio (OR): 1.48; 95% confidence interval (CI): 1.17, 1.87) and preeclampsia (OR: 1.28; 95% CI: 1.15, 1.42). Neonatal outcomes showed no association. The overall GRADE quality of the evidence for the associations was very low. The findings highlight the need to monitor and reduce UPF consumption, specifically during the gestational period, as a strategy to prevent adverse perinatal outcomes.