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
Mixed5 studies · 3 supporting · 2 against
Supplies a building block of cartilage, though whether enough of it reaches a 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 of glucosamine made no difference to disability from chronic low back pain compared with placebo.
Proposed to act on degenerative change in the spine, as it is proposed 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