Can Vegan Protein powder cause constipation?

Constipation is most often caused by excessive protein intake in combination with insufficient fiber and hydration. Most plant-based vegan protein powders include higher amounts of fiber which makes them less likely to cause constipation. The only other cause of constipation is a food intolerance. Vegan protein powders are mostly hypoallergenic apart from soy, and rarely cause constipation.