Now it seems that the opposite problem may be an excellent way to lose weight as well! Glucomannan, a water-soluble dietary fiber made from the konjac plant, apparently helps in the battle of the bulge. It does this in two ways; the first is by slowing down the absorption of sugar in the intestines and the second is swelling up in the stomach to give you a full feeling. Fiber, better regulated blood sugar and satiety? Sounds perfect, right?
The only problem is that people taking this natural supplement have suffered from intestinal and esophageal obstruction. For that reason, several countries have already banned it. I'm not sure if intestinal obstruction is worse than constipation, but not being able to swallow food or water because your esophagus is blocked can't be good.