Q.

Why can’t insulin be given orally to diabetic patients                   [2025]

1 Human body will elicit strong immune response  
2 It will be digested in Gastro-Intestinal (GI) tract  
3 Because of structural variation  
4 Its bioavailability will be increased  

Ans.

(2)

Insulin can’t be administered orally to diabetic patients as being the proteinaceous molecule, it will be digested in gastro-intestinal tract.