What it is
Mechanism evidence: human
At a glance
What it is, why people use it, the evidence, and what to know before trying it.
Why people use it
- Studied mainly for osteoarthritis pain; average benefit is small and results differ by formulation.
Evidence at a glance
Glucosamine may be useful for a defined indication or deficiency, but broad wellness claims exceed the evidence. Match the product form and dose to the research and do not use it to replace indicated medical care.
Confidence: weak
Safety & interactions
Known side effects, interactions and use limits from reviewed sources.
Glucosamine can cause gastrointestinal symptoms and may affect glucose or warfarin response. Shellfish allergy concerns depend on source and product processing.