Como uma intolerância alimentar difere de uma alergia?

Lactase Deficiency or Allergy: Similar Symptoms, Different Nature

Lactase deficiency is often mistaken for an allergy to milk protein and vice versa. The confusion arises from the similarity of symptoms. But the nature of these pathologies is different: lactase deficiency is a digestive disorder, and milk allergy is an immune problem. Let's take a closer look at both of these—how they differ and what type of medical help to seek if necessary.