How Is Whey Protein Digested

In the digestive process, whey protein is broken down into peptides, which are themselves broken down into amino acids that become absorbed in the intestinal tract. If the whey isn’t broken down properly, it is simply excreted.

Can your body digest whey protein?

It May Cause Digestive Issues Most of whey protein’s side effects are related to digestion. Some people have problems digesting whey protein and experience symptoms such as bloating, gas, stomach cramps and diarrhea (5). But most of these side effects are related to lactose intolerance.

How long does it take whey protein to digest?

Whey protein is the most popular fast absorbing protein. Its absorption rate has been estimated at roughly 10 grams per hour. At this rate, it takes just 2 hours to fully absorb a 20 gram-dose of whey.