Many supplements are on the market for weight loss.
To date, no published studies have supported their use in weight reduction and unpublished studies which have shown benefits in weight reduction were done by their manufacturers for the most part. Chitosan is another common supplement derived from shellfish and acts as resin binding fats and increasing their elimination in the stool. The best advice is to use supplements in conjunction with an exercise and diet program supervised by a physician. Many of the supplement products are not for use in people with certain medical problems or pregnant and nursing women and may interact with some medications, so it is important to advise your doctor of any supplements you are taking. Chitosan should not be taken by anyone with a shellfish allergy.