Posted by Lee Ann on October 19, 1999 at 14:00:55:

In Reply to: Insulin posted by B Jones on October 19, 1999 at 01:24:09:

Insulin is a protein, and it's digested as such. By the time it's absorbed into the blood stream, the molecule has been broken into smaller units, which the body can't recognize as insulin. I hope that clears it up for you.
Lee Ann