Effects of Early Nutritional Interventions on the Development of Atopic Disease in Infants and Children: The Role of Maternal Dietary Restriction, Breastfeeding, Timing of Introduction of Complementary Foods, and Hydrolyzed Formulas -- Greer et al. 121 (1): 183 -- AAP Policy

This revision of AAP recommendations regarding introduction of foods that are common allergens is just about the muddiest document I've ever read. Aside from recommending breastfeeding, particularly during the first 6 months, this is about as close as I've ever seen the AAP come to saying, "we just aren't sure what you should do." Unfortunately, sometimes recommendations from the medical community are based on very little actual science. We now have enough data to know that we need more data.

Effects of Early Nutritional Interventions on the Development of Atopic Disease in Infants and Children: The Role of Maternal Dietary Restriction, Breastfeeding, Timing of Introduction of Complementary Foods, and Hydrolyzed Formulas -- Greer et al. 121 (1): 183 -- AAP Policy