Glucosamine Sulfate

Joint Support · Evidence: Mixed · Importance: Moderate

Joint comfort support.

What the evidence says

Mixed evidence. Some benefit for knee/joint comfort in certain populations.

Typical dose & timing

Dose: 1,500 mg/day commonly

Timing: Daily with food.

Role in a stack

Joint support.

Redundancy check:

Cautions & safety

Shellfish allergy concerns depending on source. Use caution with blood thinners or diabetes medications.

Mixed study results but widely used.

Best for

users with joint wear or discomfort

Source-verified products

Real products in this category, ordered by review count. Each price and rating comes from the product's own page, recorded 2026-07-29 — follow the link for current values. Links go to the product's source page and never affect this ranking.

• Doctor's Best, Glucosamine Chondroitin MSM, 360 Veggie Capsules
  Doctor's Best · $45.99 · 4.8/5 (93608 ratings) · premium tier
• California Gold Nutrition, Glucosamine, Chondroitin, MSM Plus Hyaluronic Acid, 120 Veggie Caps
  California Gold Nutrition · $17.93 · 4.8/5 (22960 ratings) · budget tier
• 21st Century, Glucosamine Chondroitin Complex Plus MSM, Advanced Triple Strength, 120 Coated Tablets
  21st Century · $22.99 · 4.8/5 (10812 ratings) · mid tier
• MRM Nutrition, Glucosamine Chondroitin MSM, 90 Capsules
  MRM Nutrition · $19.99 · 4.8/5 (9788 ratings) · budget tier
• Solgar, Glucosamine Hyaluronic Acid Chondroitin MSM, 120 Tablets
  Solgar · $40.94 · 4.8/5 (8103 ratings) · premium tier
• Jarrow Formulas, Glucosamine + Chondroitin + MSM, 240 Capsules
  Jarrow Formulas · $50.47 · 4.7/5 (5307 ratings) · premium tier
• BioSchwartz, Glucosamine Chondroitin + MSM, 180 Capsules
  BioSchwartz · $34.97 · 4.8/5 (4032 ratings) · premium tier
• VPLab , Glucosamine Chondroitin MSM, 180 Tablets
  VPLab · $31.90 · 4.8/5 (3638 ratings) · mid tier
• Swanson Vitamins, Glucosamine, Chondroitin & MSM, 120 Tablets
  Swanson Vitamins · $12.39 · 4.8/5 (2960 ratings) · budget tier
• Life Extension, Glucosamine/Chondroitin, 90 Capsules
  Life Extension · $27.75 · 4.7/5 (1364 ratings) · mid tier
• Best Naturals, Glucosamine + Chondroitin + MSM, 180 Capsules
  Best Naturals · $19.55 · 4.8/5 (743 ratings) · budget tier
• Nutricost Glucosamine + Chondroitin + MSM Tablets
  Nutricost · $24.97 · 4.49/5 (84 ratings) · mid tier

References

• Glucosamine for osteoarthritis: a meta-analysis. Arthritis & Rheumatism (2005)
  Evidence is mixed. Glucosamine sulfate shows modest benefit for knee joint comfort in some trials, but large independent trials (like GAIT) show inconsistent results. More useful in symptomatic individuals.