Can Thailand cony really lose weight after eating fat and oil?

The main component of cony in Thailand is chitosan, which is sugar or fiber separated from the outer layer of crustaceans such as crabs, lobsters or shrimps.

By preventing the absorption of fat and other substances by the gastrointestinal wall, the circulation of cholic acid in liver and intestine is blocked, which plays a role in reducing blood fat and cholesterol. I ate very well and had no side effects.