Then there is chitosan, which purportedly combines with fat in the large intestine. At first it was marketed for its ability to reduce cholesterol, improve digestion, and help one lose weight. But later, when it was found that the human body has a very limited capacity to assimilate chitosan, and that its slimming effects are negligible, chitosan began to be promoted as a product which might be able to relieve arthritis.
號稱能與腸道中的脂肪結合的「甲殼素」，一開始也被賦予減肥、降低膽固醇、改善消化機能等功效，但後來發現人體能處理的甲殼素非常有限，減肥效果不彰，反倒是在對抗關節炎上「可能」幫助較大。