Collagen is one of the most abundant proteins in the body. The collagen powders are among today’s most popular dietary supplements. Many people take collagen for skin elasticity, joints, and muscle mass support. But a common question is simple and practical: can collagen cause constipation?

Constipation isn’t the most typical reaction to consuming collagen, but it can happen for some people-usually. For reasons you can control, like low fiber, dehydration, dose, product additives, or individual sensitivity.

Below, we explain the mechanisms, who’s at risk, and easy fixes grounded in current evidence. We also review the benefits of collagen, types of collagen, and broader side effects of collagen. So you can use it confidently and protect your gut health. For personal advice, always speak with your clinician.