While hemp protein powder is safe for most, it contains high amounts of fiber which can cause gas, bloating and diarrhea if too much is consumed too quickly.

Unfortunately diarrhea can be a side effect of soy protein powder if you are soy intolerant.

Rice protein powder does not cause diarrhea and is in fact very hypoallergenic. However, as with all protein, excessive consumption can cause diarrhea.

Protein itself does not cause diarrhea, but a food intolerance can. If is very rare for egg protein powder to cause a food intolerance.

While its rare for quality beef protein powder to cause diarrhea, some have reported experiencing this side effect.

Yes, casein protein powder contains lactose and can cause digestive issues for those with some lactose intolerance, including diarrhea.

It is highly unlikely for pea protein powder to cause diarrhea. Diarrhea is more often a symptom of a food intolerance such as to lactose in whey.

When used correctly, plant protein powder should not cause diarrhea unless you have a food intolerance.

Yes, diarrhea is a common symptom from whey protein powder that can be experienced by those that suffer from lactose intolerance.