I usually tell my overweight patients to set a target weight, then take 1,000 milligrams (mg) of chitosan 30 minutes before eating lunch and dinner. Once the goal is reached, they can stop taking the chitosan.

Taking chitosan does not give you permission to eat whatever you want. But it will give you an extra push in the right direction.

There’s no evidence that chitosan causes any side effects— but consult your doctor before trying it just to be safe, especially if you’re taking any other medications.

caution: Avoid chitosan if you’re allergic to shellfish, or are pregnant or breast-feeding. Don’t take vitamins A, D or E within four hours of taking chitosan. If you do, the health benefits of these vitamins will be lost.

Chitosan pills are available at most drugstores.

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