In the United States, glucosamine is recognized as a supplement and not as a medication. Therefore, dosage information has not been established by the Food and Drug Administration. Nutritionists who work with patients using glucosamine recommend the following:[14]

To repair and rebuild your joints, take the following daily:

* Glucosamine sulfate 1,000 -- 1500 mg
* Chondroitin sulfate 800 -- 1,200 mg