No. Pasteurized milk has never been found to be the cause of dairy allergies. Less than 1% of adults and 3% of children have a clinically proven milk allergy, and children tend to outgrow a milk allergy by the age of 3. Milk allergies are rare in adults and should not be confused with lactose intolerance. Milk allergies involve immunological reactions, while lactose intolerance involves digestive factors.
As milk is a major source of 16 essential nutrients, it is best to reintroduce milk into children’s diets as early as possible. Infantile colic, or prolonged episodes of irritability, fussiness and crying, is also often attributed to a cow’s milk protein allergy. However, evidence fails to support that an allergy to cow’s milk is the cause of colic. The exact cause of colic remains unknown.