Vitamins & Supplements

What is Glucosamine?
Glucosamine Sulfate is a natural product. It is derived from the exoskeletons of various varieties of shellfish.

What does Glucosamine Sulfate do?
Glucosamine sulfate provides the joints with the building blocks needed to address changes from normal wear and tear. Specifically, it provides the raw material needed by the body to manufacture cartilage.

What is Chondroitin?

What does Chondroitin do in the body?
Chondroitin protects the cartilage and attracts fluids that give the tissue its shock absorbing quality.

Glucosamine & chondroitin ingredients have been the subject of more research over recent years than any other supplements on the market. Both clinical reports and research trials demonstrate that they support healthy joint function.

"Supplements such as glucosamine sulfate and chondroitin sulfate may actually help restore damaged tissue structure in joints, perhaps because these two substances are natural constituents of healthy cartilage."
Andrew Weil, M.D.

Find out if glucosamine & chondroitin are right for you - get your free personalized recommendation from Dr. Weil's Vitamin Advisor.

Buy Glucosamine & Chondroitin at a Retail store near you using the Retail Store Locator for locations in the U.S.

Weil Nutritional Supplements are based on stringent scientific research. Current, valid studies (published in peer-reviewed scientific journals) are the basis of our formulations, and all products are designed, selected, and approved by Dr. Weil and a team of physicians and researchers who are experts in the field of nutritional supplementation.

All our products are made by manufacturers who must meet our strict guidelines for quality control, as well as Good Manufacturing Practices in all aspects of production, testing and packaging. All product ingredients are tested both prior to and after manufacturing to ensure that the constituents and doses are correct. Additionally, our products are free of any preservatives, artificial colors or flavorings, and non-essential additives.