1940 - Nutrition

Nutrition

Chicago-born Cornell Medical College biochemist Vincent du Vigneaud, 39, isolates the B vitamin biotin. He finds that a substance known as vitamin H is identical with the coenzyme R found in leguminous plants and is, in fact, a B vitamin. Du Vigneaud will elucidate the structure of biotin in the next 2 years, but while two kinds of dermatitis in infants will be found to respond to biotin therapy, no natural biotin deficiency will be observed in humans (see medicine, 1946).