Insulin cannot be taken orally.Why not?
A) Insulin is a protein and would be broken down by the human digestive tract if taken orally.
B) Oral insulin has been shown to lead to the development of severe peptic ulcers.
C) Oral insulin does not control blood glucose levels in a consistent manner and is therefore very unreliable.
D) Oral insulin takes too long to work in the body and is therefore ineffective in lowering blood glucose levels.

Question

Quizplus · Accepted Answer

Insulin is a protein and would be broken down by the human digestive tract if taken orally. This is because proteins are large and complex molecules that cannot be absorbed intact through the gastrointestinal tract. They need to be broken down into smaller units, such as amino acids, before they can be absorbed.

Insulin Cannot Be Taken Orally.Why Not