The below doses are based on scientific research, publications, traditional use, or expert opinion. Many herbs and supplements have not been thoroughly tested, and safety and effectiveness may not be proven. Brands may be made differently, with variable ingredients, even within the same brand. The below doses may not apply to all products. You should read product labels, and discuss doses with a qualified healthcare provider before starting therapy.
Adult (18 years and older)
Doses of 200-400 milligrams by mouth twice to three times daily, or 800-1,200 milligrams once daily have been used in studies. Higher doses (up to 2,000 milligrams) appear to have similar efficacy. In the treatment of osteoarthritis, full effects may take several weeks to occur.
It is not clear what dose is optimal when used in combination with glucosamine or whether the combination is as effective as or more effective than either agent alone.
For osteoarthritis, 50-100 milligrams as a single daily injection or divided into two daily injections has been used. Medical supervision is recommended.
Children (younger than 18 years)
There is no proven effective dose for chondroitin in children.