Protein shakes themselves are not a cause for acne, but there is anecdotal evidence to suggest that whey protein powder can increase acne in some people.

While whey protein itself is completely safe, some products can include unwanted additives or contaminants you may wish to avoid.

Protein powder itself is not a cause for acne, but there is anecdotal evidence to suggest that whey protein powder can increase acne in some people.

While plant protein powders do not cause constipation alone, excessive consumption of protein without sufficient fiber and hydration can cause constipation.

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