I recently chanced upon a web ad for chitosan, claimed to be a "Fat Magnet", which would let one eat fatty foods and lose weight. Looked like another magic pill. So I turned to my handy Google.Com search engine for information. Chitosan is processed from chitin, mostly obtained from crushed shellfish shells, crab shells, and similar. Chitosan is a polymer with structure similar to cellulose. It has applications in industry, such as to hold catalysts. The national governments of both Britain a.