What is Cows' Milk Allergy?

Cows milk allergy (CMA) (sometimes termed Cows milk protein intolerance) along with other food allergies, appears to be on the increase. It's not entirely clear why, but it means that up to 7.5% of children can have an adverse reactions with cow's milk. It is also more common in families where one or more individuals are "atopic" - that is, have problems such as asthma, eczema, or hay fever.