Abstract
Objectives and study Lactose intolerance has a variable prevalence in different parts of the world. The differences may be explained by the diverse eating habits of each population, allowing over the years a selection of individuals with and without the ability to digest lactose – ontogenetic variation. The objective of this study is to identify the prevalence of lactose intolerance and their presenting main symptoms, developed by children at a Day care center in the municipality of Duque de Caxias, Rio de Janeiro, Brazil, after an oral lactose tolerance test.
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