Can Soy Protein Powder cause constipation?

While there are many health benefits from soy protein powder, constipation if a problem some have reported. While soy protein itself does not cause constipation, it can increase the occurrence of constipation in those with a low fiber diet. Soy protein powder does have a slight dehydrating effect when taken in large quantity. If you suffer from constipation while taking soy protein powder you should consider supplementing your diet with additional fiber and drinking plenty of fluids. Alternatively you could trial an alternative source for your protein powder.