What would happen to the insulin in the stomach if it is swallowed as tablet?

If insulin is swallowed as a tablet, it would likely be broken down by the stomach's acidic environment and digestive enzymes, rendering it ineffective. Insulin is a protein, and like many other proteins, it cannot survive the harsh conditions of the gastrointestinal tract. Consequently, it would not be absorbed into the bloodstream and would not have any therapeutic effect on blood sugar levels. To be effective, insulin must be administered through injection or other methods that bypass the digestive system.