Abstract
The World Health Organization recommends a diverse complementary food diet for infants over age 6 months of age. Our objective was to describe the development of dietary diversity to age 1 year in parallel birth cohorts in Shanghai, Mexico City and Cincinnati (USA). 365 breastfed infants (120 each in Shanghai and Cincinnati, 125 in Mexico City) were enrolled near birth and dietary intake assessed weekly by 24-hour recall to age 1. Dietary diversity from age 6 to 12 months was assessed using a modified WHO indicator, as at least 4 of 7 food groups on at least one week in the month. Diet diversity was tracked longitudinally by cohort, controlling for the proportion of the diet composed of breast milk. Analysis used chi-square and logistic regression modeling. Dietary diversity increases by month of age, from 31% at age 6 months to 92% at age 12 months. Shanghai infants were more likely to achieve dietary diversity, and Cincinnati infants least likely, adjusting for month of age and proportion of diet compos...
Published Version
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