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Updated ESPGHAN guideline says age of gluten introduction in infants does not affect celiac disease risk
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The European Society for Pediatric Gastroenterology, Hepatology and Nutrition has released a position paper stating that new evidence shows age of gluten introduction has no effect on the risk for developing celiac disease in at-risk infants.
This reverses ESPGHAN’s 2008 recommendations — which were based solely on observational studies — that initial exposure to gluten should be avoided when infants are aged younger than 4 months or 7 months and older, and that gluten introduction should occur while the infant is still being breast-fed.
Since then, two randomized controlled trials have shown “that the age of gluten introduction into the infant’s diet, whether early or late, influences the incidence of each during the first 2 years, but not the cumulative incidence and prevalence of CD during childhood, and, thus, indicated that primary prevention of CD through nutritional interventions is not possible at the present time,” the authors wrote. “A systematic review that evaluated evidence from prospective observational studies published up until February 2015 also showed that [breast-feeding], any or at the time of gluten introduction, had no preventive effect on the development of [CD autoimmunity or CD] during childhood.”
The data on breast-feeding should be interpreted with caution as the overall quality of evidence was low, they wrote. Breast-feeding should, however, be promoted for its other established health benefits, they added.
The paper’s major conclusions include:
- Breast-feeding recommendations should not be modified to prevent CD;
- gluten introduction while an infant is being breast-fed to reduce risk for CD cannot be recommended;
- gluten can be introduced between ages 4 and 12 completed months as timing in this age range does not appear to impact absolute risk for developing CD autoimmunity or CD during childhood;
- recommendations cannot be made regarding type of gluten used at introduction;
- optimal amounts of gluten to introduce at weaning or effects of different wheat preparations have not been established, but despite limited evidence on exact amounts, ESPGHAN suggests avoiding large amounts of gluten during the first months after gluten introduction; and
- evidence is insufficient to make recommendations on gluten introduction in children from families with first-degree relatives with CD.
While these recommendations are based on studies of families with first-degree relatives with CD, they apply to all infants (despite the fact that they may not be relevant to an estimated two-thirds of the population) as genetic risk alleles are typically unknown at the time solid food is introduced in the infant diet, the authors wrote. They concluded that future studies should focus on optimal gluten types and amounts for dietary introduction, whether delaying gluten introduction for more than 1 year would reduce the long-term prevalence of CD, and screening strategies. – by Adam Leitenberger
Disclosure: Szajewska reports receiving a grant from the European Union project PreventCD, from the European Union’s Seventh Framework Programme, project EarlyNutrition, from Komitet Nauki, and from Fundacja Nutricia. Please see the full study for a list of all other authors’ relevant financial disclosures.
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