Calcium, Vitamin D, Glucosamine and Collagen: A Complete Guide to Bone and Joint Supplements

Calcium and vitamin D needs

Glucosamine evidence

• A 2018 analysis of 29 studies found glucosamine or chondroitin alone reduced pain, but not the combination.
• ACR (2019) and OARSI (2019) strongly recommend against glucosamine for knee OA; AAOS (2021) says it may help mild-to-moderate OA.

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This article is general wellness and product information, not medical advice. If you have a medical condition, take medication, or are pregnant or breastfeeding, talk to your doctor or pharmacist first.