Organic milk enjoys a good reputation for its higher levels of healthy omega-3 fatty acids and vitamins. As a major vitamin D source, milk can strengthen the immune system. The growth factor IGF (insulin-like growth factor) is discussed as the cause of increased growth when children and adolescents drink a lot of milk. Some adolescents suffer from increased milk intake from acne. In fact, certain factors seem to promote acne formation. However, researchers confine that this mainly plays a role in adolescents who have a genetic predisposition to acne formation. Also, to influence the activity of genes is intensively researched. Small RNAs, the so-called micro-RNAs, which are present in milk as well as in other plant foods or in eggs, were of particular interest. At present, there are no convincing studies that plausibly explain a positive or negative effect.