Allergic diseases, such as atopic dermatitis (AD), food allergy, asthma, and allergic rhinitis, and other noncommunicable diseases share a common underlying pathogenesis involving aberrant chronic inflammation that results from dysregulation of immune response patterns, which are established in early life.1 The infant intestinal microbiota plays a critical role in programming of healthy vs dysregulated immune response patterns and is shaped by microbial exposures and diet in the pregnant mother and during the infant’s first years.2