other · a form of Glucosamine
Glucosamine Sulfate
The form used in the long-running European trials, most of which were run by the company selling it.
What it’s good for
Glucosamine Sulfate for Joint Pain
No Benefit8 studies · 3 supporting · 4 against
How it was tested: An independently funded trial found no benefit for pain or movement over two years.
Supplies a building block of cartilage. Whether enough reaches the joint to matter is unresolved.
Dose: 1500 mg
Tested as: crystalline glucosamine sulfate 1500 mg once daily — in the positive trials, specifically the Rotta preparation
Glucosamine Sulfate for Back Pain
No Benefit2 studies · 0 supporting · 2 against
How it was tested: Six months made no difference to disability from long-term back pain.
Meant to act on wear in the spine, as it is meant to in other joints.
Dose: 1500 mg
Tested as: glucosamine sulfate 1500 mg daily for six months in chronic low back pain
Other forms of Glucosamine