Cow's Milk Allergy (CMA) is the most common type of food allergy in infants and young children and typically develops in the first year of life. Cow’s Milk Allergy is an allergic reaction to the protein in cow’s milk. Symptoms can occur immediately after feeding in which case you will need to seek immediate medical attention or can be delayed for up to a couple of days. Cow’s Milk Allergy can occur in formula fed or breast fed infants.

It is not clearly understood why some children's immune systems try to 'fight' certain foods or the proteins they contain. In general, infants and young children are much more sensitive as their immune systems are still quite immature. Children coming from a family with an extensive history of allergy have a greater risk of developing food allergy than those with allergy-free relatives. However, even infants and children having no family history of allergy at all can have allergic symptoms.