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Parker EK, Flood V, Halaki M, Wearne C, Anderson G, Gomes L, Clarke S, Wilson F, Russell J, Frig E, Kohn M. A standard enteral formula versus an iso-caloric lower carbohydrate/high fat enteral formula in the hospital management of adolescent and young adults admitted with anorexia nervosa: a randomised controlled trial. J Eat Disord 2021; 9:160. [PMID: 34895344 PMCID: PMC8666027 DOI: 10.1186/s40337-021-00513-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 11/19/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The nutritional rehabilitation of malnourished patients hospitalised with anorexia nervosa is essential. The provision of adequate nutrition must occur, while simultaneously, minimising the risk of refeeding complications, such as electrolyte, metabolic, and organ dysfunction. The aim of this study was to compare the efficacy and safety of an iso-caloric lower carbohydrate/high fat enteral formula (28% carbohydrate, 56% fat) against a standard enteral formula (54% carbohydrate, 29% fat). METHODS Patients (aged 15-25 years) hospitalised with anorexia nervosa were recruited into this double blinded randomised controlled trial. An interim analysis was completed at midpoint, when 24 participants, mean age 17.5 years (± 1.1), had been randomly allocated to lower carbohydrate/high fat (n = 14) or standard (n = 10) feeds. RESULTS At baseline, there was no significant difference in degree of malnutrition, medical instability, history of purging or serum phosphate levels between the two treatment arms. A significantly lower rate of hypophosphatemia developed in patients who received the lower carbohydrate/high fat formula compared to standard formula (5/14 vs 9/10, p = 0.013). The serum phosphate level decreased in both feeds, however it decreased to a larger extent in the standard feed compared to the lower carbohydrate/high fat feed (standard feed 1.11 ± 0.13 mmol/L at baseline vs 0.88 ± 0.12 mmol/L at week 1; lower carbohydrate/high fat feed 1.18 ± 0.19 mmol/L at baseline vs 1.06 ± 0.15 mmol/L at week 1). Overall, serum phosphate levels were significantly higher in the lower carbohydrate/high fat feed compared with standard feed treatment arm at Week 1 (1.06 ± 0.15 mmol/L vs 0.88 ± 0.12 mmol/L, p < 0.001). There was no significant difference in weight gain, number of days to reach medical stability, incidence of hypoglycaemia, or hospital length of stay. CONCLUSIONS The results of this study indicate that enteral nutrition provided to hospitalised malnourished young people with anorexia nervosa using a lower carbohydrate/high fat formula (28% carbohydrate, 56% fat) seems to provide protection from hypophosphatemia in the first week compared to when using a standard enteral formula. Further research may be required to confirm this finding in other malnourished populations. TRIAL REGISTRATION ANZCTR, ACTRN12617000342314. Registered 3 March 2017, http://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12617000342314.
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Affiliation(s)
- Elizabeth Kumiko Parker
- Department of Dietetics and Nutrition, Westmead Hospital, PO Box 533, Wentworthville, NSW, 2145, Australia. .,Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Victoria Flood
- Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia.,Western Sydney Local Health District, Westmead, NSW, 2145, Australia
| | - Mark Halaki
- Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Christine Wearne
- Department of Medical Psychology, Westmead Hospital, Westmead, NSW, 2145, Australia
| | - Gail Anderson
- Department of Adolescent and Young Adult Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia
| | - Linette Gomes
- Department of Adolescent and Young Adult Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia
| | - Simon Clarke
- Department of Adolescent and Young Adult Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia.,Centre for Research Into AdolescentS' Health (CRASH), Westmead Hospital, Westmead, NSW, 2145, Australia.,Sydney School of Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Frances Wilson
- Department of Psychiatry, Westmead Hospital, Westmead, NSW, 2145, Australia
| | - Janice Russell
- Sydney School of Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia.,NSW Statewide Eating Disorder Service, Peter Beumont Unit, Professor Marie Bashir Centre, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia
| | - Elizabeth Frig
- Department of Nutrition and Dietetics, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia
| | - Michael Kohn
- Department of Adolescent and Young Adult Medicine, Westmead Hospital, Westmead, NSW, 2145, Australia.,Centre for Research Into AdolescentS' Health (CRASH), Westmead Hospital, Westmead, NSW, 2145, Australia.,Sydney School of Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia
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Jowik K, Tyszkiewicz-Nwafor M, Słopień A. Anorexia Nervosa-What Has Changed in the State of Knowledge about Nutritional Rehabilitation for Patients over the Past 10 Years? A Review of Literature. Nutrients 2021; 13:3819. [PMID: 34836075 DOI: 10.3390/nu13113819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/19/2021] [Accepted: 10/24/2021] [Indexed: 11/16/2022] Open
Abstract
Anorexia nervosa (AN) is a psycho-metabolic disorder with a high risk of somatic complications such as refeeding syndrome (RFS) and carries the highest mortality rate of all psychiatric illnesses. To date, the consensus on the care for patients with AN has been based on recommendations for a combination of alimentation and psychotherapy. It is important to establish an initial caloric intake that will provide weight gain and minimize the risk of complications in the treatment of undernourished patients. Research over the past few years suggests that current treatment recommendations may be too stringent and should be updated. The aim of this paper is to systematize the current reports on nutritional rehabilitation in AN, to present the results of studies on the safe supplementation of patients and its potential impact on improving prognosis and the healing process. This review of literature, from 2011-2021, describes the changing trend in the nutritional protocols used and the research on their efficacy, safety, and long-term effects. In addition, it presents previous reports on the potential benefits of introducing vitamin, pro-and prebiotic and fatty acid supplementation.
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