What are fat blockers?

Fat blockers commonly contain chitosan, calcium-rich source, which is similar to dietary fiber, but is derived from the exoskeletons of shellfish. Like fiber, they pass through the digestive tract without being digested, but it also purportedly absorbs between 6 and 10 times its weight in fat along the way, all of which is then eliminated in the stool.

How Do Fat Blockers Work