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What are the side effects of glucosamine chondroitin for arthritis?
3 doctors weighed in

Dr. Timothy Mosher
Radiology
2 doctors agree
In brief: Mild side effects
Glucosamine is an amino sugar that is often taken as a nutritional supplement for arthritis.
In several large clinical trials the side effects were mild and infrequent consisting of constipation, stomach ache, rash and hives. Since glucosamine is often made from the shells of crustaceans there is a theoretical risk of an allergic reaction for those with seafood allergies, but is rarely seen.

In brief: Mild side effects
Glucosamine is an amino sugar that is often taken as a nutritional supplement for arthritis.
In several large clinical trials the side effects were mild and infrequent consisting of constipation, stomach ache, rash and hives. Since glucosamine is often made from the shells of crustaceans there is a theoretical risk of an allergic reaction for those with seafood allergies, but is rarely seen.
Dr. Timothy Mosher
Dr. Timothy Mosher
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