Question:medium

Why can't insulin be given orally to diabetic patients?

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Insulin = Protein. Proteins get digested.
Updated On: Jan 13, 2026
  • It will be digested in Gastro-Intestinal (GI) tract.
  • Because of structural variation.
  • Its bioavailability will be increased.
  • Human body will elicit strong immune response.
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The Correct Option is A

Solution and Explanation

Insulin, a protein hormone, is inactivated by digestive enzymes in the stomach and small intestine if ingested orally. Consequently, insulin is typically administered via injection to ensure direct entry into the bloodstream.
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