I recently had my first colonoscopy. When I read the notes, I was surprised to read that I have a “loopy” colon. My lifelong chronic constipation suddenly made sense. For the past 20 years, I have successfully treated the problem (without knowing the cause) by eating at least 1/4 cup of amaranth per day. It works amazingly well. If anyone wants to try it and would like recipes, let me know.