Maternal diet during pregnancy and lactation and risk of child food allergies and atopic allergic diseases a systematic review

The ability to draw strong conclusions was limited by the following issues: ○ Few RCTs have been conducted and thus, data were primarily observational in nature, limiting the ability to determine causal effects of consumption or avoidance of different foods during pregnancy and risk of atopic dermat...

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Bibliographic Details
Main Author: Donovan, Sharon M.
Corporate Authors: Center for Nutrition Policy and Promotion (U.S.) Nutrition Evidence Systematic Review, United States Department of Agriculture
Format: eBook
Language:English
Published: Alexandria (VA) United States Department of Agriculture [2020], 2020
Online Access:
Collection: National Center for Biotechnology Information - Collection details see MPG.ReNa
Description
Summary:The ability to draw strong conclusions was limited by the following issues: ○ Few RCTs have been conducted and thus, data were primarily observational in nature, limiting the ability to determine causal effects of consumption or avoidance of different foods during pregnancy and risk of atopic dermatitis, food allergies, allergic rhinitis, and asthma in the child.○ Key confounders were not consistently controlled for in most of the studies.○ Studies had risk-of-bias issues, such as self-reported outcomes and selection bias.○ People with lower SES, adolescents, and racially and ethnically diverse populations were underrepresented in the body of evidence.2. Lactationiii 1.1.
The ability to draw strong conclusions was limited by the following issues: ○ Very few studies assessed the relationship between maternal diet during lactation alone and risk of atopic dermatitis, food allergy, allergic rhinitis, and asthma.○ Key confounders were not consistently controlled for in most of the studies.○ Women with lower socioeconomic status (SES), adolescents, and racially and ethnically diverse populations were underrepresented in the body of evidence
Twenty-five articles from five RCTs, one NRCT, and 10 prospective cohort studies examined maternal dietary patterns and consumption and/or avoidance of cow milk products, eggs, fish, soybean, wheat, peanuts, tree nuts, and other foods not commonly considered to be allergens during pregnancy alone, or during both pregnancy and lactation, in relation to risk of atopic dermatitis/eczema in the child from birth through age 18 y.1.4. Sixteen articles from four RCTs and six prospective cohort studies examined maternal dietary patterns and avoidance and/or consumption of cow milk products, eggs, fish, soybean, wheat, peanuts, tree nuts, and other foods not commonly considered to be allergens during pregnancy alone, or during both pregnancy and lactation, in relation to risk of allergic rhinitis in the child from birth through 18 y of age.1.5.
This systematic review included 36 articles from five randomized controlled trials (RCTs), one non-RCT (NRCT), and 13 prospective cohort studies that assessed the association between maternal diet and risk of food allergy, atopic dermatitis/eczema, allergic rhinitis, and asthma in the child occurring from birth through 18 y of age. The articles were published between 1987 and 2020 and consisted of: ○ Thirty articles from 15 studies that included only pregnant women.○ Six articles from four studies that included both pregnant and lactating women.1.2. Six articles from two RCTs and two prospective cohort studies examined maternal avoidance and/or consumption of cow milk products, eggs, soybean, wheat, and peanuts during pregnancy alone, or during both pregnancy and lactation, in relation to risk of food allergy in the child from birth through 18 y of age.1.3.
This systematic review included eight articles from four randomized controlled trials (RCTs), one non-RCT (NRCT), and one prospective cohort study that assessed the relationship between maternal diet during both pregnancy and lactation, or during lactation alone, and risk of food allergy, atopic dermatitis/eczema, allergic rhinitis, and asthma in the child occurring from birth through 18 y of age. The included articles were published between 1989 and 2013. ○ Six articles from four studies included both pregnant and lactating women.○ Two studies included only lactating women.1.2. Four articles from two RCTs examined maternal avoidance of cow milk products, eggs, soybean, wheat, and peanuts during both pregnancy and lactation, in relation to risk of food allergy and allergic rhinitis in the child from birth through 18 y of age. None of these studies were conducted exclusively in lactating women.1.3.
BACKGROUND: 1. This important public health question was identified by the U.S. Departments of Agriculture (USDA) and Health and Human Services (HHS) to be examined by the 2020 Dietary Guidelines Advisory Committee.2. The 2020 Dietary Guidelines Advisory Committee, Pregnancy and Lactation Subcommittee conducted a systematic review to answer this question with support from the Nutrition Evidence Systematic Review (NESR) team.3. The goal of this systematic review was to examine the following question: What is the relationship between maternal diet during pregnancy and lactation and risk of child food allergies and atopic allergic diseases? SUMMARY OF THE EVIDENCE: 1. Pregnancyiii 1.1.
Nineteen articles from two RCTs and eight prospective cohort studies examined maternal dietary patterns and avoidance and/or consumption of cow milk products, eggs, fish, soybean, peanuts, tree nuts, and other foods during pregnancy alone, or during both pregnancy and lactation, in relation to risk of asthma in the child from 2 through 18 y of age.1.6. No articles were identified that examined maternal consumption of seeds during pregnancy in relation to risk of atopic outcomes in the child from birth through 18 y of age.1.7.
Seven articles from four RCTs and one NRCT examined maternal avoidance of cow milk products, eggs, soybean, wheat, and peanuts during both pregnancy and lactation, or during lactation alone, in relation to the risk of atopic dermatitis/eczema in the child from birth through 18 y of age. Of these, only one RCT was conducted exclusively in lactating women.1.4. Four articles from two RCTs and one prospective cohort study examined maternal avoidance and/or consumption of cow milk products, eggs, fish, soybean, peanuts, wheat, and other foods during both pregnancy and lactation, or during lactation alone, in relation to risk of asthma in the child from 2 through 18 y of age. Of these, one prospective cohort study was conducted exclusively in lactating women.1.5. No articles were identified that examined maternal avoidance or consumption of seeds during lactation in relation to the risk of atopic outcomes in the child from birth through 18 y of age.1.6.
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