Diet therapy is the basis for treating food allergies. Breastfeeding with a mother following a hypoallergenic diet is optimal for children with food allergies. If the mother has no milk and is allergic to cow's milk, soy formulas are used (Alsoy, Bonasoya, Frisosoy, etc.). In case of soy intolerance, formulas based on products of high protein hydrolysis (Alfare, Alimentum, Pepti-Junior, etc.) and partial hydrolysis of milk protein (Humana, Frisopep).