Different Measures of Diet Diversity During Infancy and the Association with Childhood Food Allergy in a UK Birth Cohort Study.
THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020;
8:2017-2026. [PMID:
32004745 DOI:
10.1016/j.jaip.2020.01.029]
[Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 11/27/2019] [Accepted: 01/14/2020] [Indexed: 01/23/2023]
Abstract
BACKGROUND
Diet diversity (DD) during infancy may prevent food allergies (FA), possibly by exposing the gastrointestinal microbiota to diverse foods and nutrients.
OBJECTIVE
To investigate the association between 4 different measures of DD during infancy and development of FA over the first decade of life.
METHODS
A birth cohort born between 2001 and 2002 were followed prospectively, providing information on sociodemographic, environmental, and dietary exposures. Information on age of introduction of a range of foods and food allergens was collected during infancy. Children were assessed for FA at 1, 2, 3, and 10 years. DD was defined using 4 measures in the first year of life: the World Health Organization definition of minimum DD at 6 months, as food diversity (FD) and fruit and vegetable diversity (FVD) at 3, 6, and 9 months, and as food allergen diversity (FAD) at 3, 6, 9, and 12 months.
RESULTS
A total of 969 pregnant women were recruited at 12-week gestation. A total of 900, 858, 891, and 827 offspring were assessed at 1, 2, 3, and 10 years. Univariate analysis showed that World Health Organization DD (P = .0047), FD (P = .0009), FAD (P = .0048), and FVD (P = .0174) at 6 months and FD (P = .0392), FAD (P = .0233), and FVD (.0163) at 9 months significantly reduced the odds of FA over the first decade of life. DD measures at 3 months were not associated with FA, but only 33% of the cohort had solid foods introduced by this age.
CONCLUSION
Increased infant DD, as measured by 4 different methods, decreased the likelihood of developing FA.
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