Why food matters
Food is one of the most effective first steps, but the details matter. Not all fibre works the same way: psyllium, kiwifruit, prunes and rye bread have the best evidence, while wheat bran can add bloating for some people. Drinking more helps mostly if you don’t drink much to begin with. Routine, activity and toilet posture also make a difference, and some medications, such as iron, opioid pain relievers and some antidepressants, can be part of the cause.
