Source: GAIT Trial (Clegg 2006, NEJM) — 1,500 mg glucosamine (± 1,200 mg chondroitin)/day for joint pain.
GAIT used 1,500 mg glucosamine + 1,200 mg chondroitin daily; the grade tracks the glucosamine component.
Two cartilage building blocks usually sold together for joint health.
Provide raw materials for cartilage and may have mild anti-inflammatory effects.
Safe; mild GI upset. Glucosamine is often shellfish-derived (check if allergic). The landmark GAIT trial used 1,500 mg glucosamine + 1,200 mg chondroitin daily.
| Per serving | |
|---|---|
| Typical branded single-ingredient product | $0.39 |
| Bulk powder at the clinical dose (500g, $23.97) | $0.07 |
Buying bulk powder instead of a branded bottle saves about 81% per serving.
Bulk price: $23.97/500g →Educational only — not medical advice. Grades and clinical doses are computed from public labels against sourced research (citations on the main site); prices last verified 2026-07-21. Expensive Powder has no sponsors; bulk links may earn an affiliate commission, which never affects a grade. Talk to a clinician before starting any supplement.