For Food Allergies and Colic Due to Protein Sensitivity.While sensitivity to the protein in both milk-based and soy-based baby formulas is uncommon, it"s good to know there is a trusted alternative. If your babys digestive system is especially sensitive and requires an extra-gentle baby formula, ask your physician about Similac Expert Care Alimentum Hypoallergenic Formula. Similac Expert Care Alimentum starts to reduce colic symptoms in most babies in just 24 hours. Its easy for sensitive babies to digest and its protein is broken down into tiny pieces to virtually eliminate allergic reactions in most babies who are allergic to cows milk protein. Signs of Protein Sensitivity: Some babies have long crying spells and cannot be easily comforted. This excessive crying or fussiness is sometimes called colic, and may be due to a sensitivity to the protein. Other symptoms such as severe diarrhea, rashes, and even sleeping problems also can be caused by protein sensitivity. As with all feeding decisions during the first year, consult your baby"s health care professional. *Colic symptoms due to protein sensitivity Based on a clinical study with Similac Expert Care Alimentum Ready To Feed without DHA and ARA.