Be careful. Alot of snake oil and gimics out there. Read as much you can before trying alternative or off label use some may work but have not been tested for safety.
Arthritis. Alternative arthritis treatments, which are far more than can be mentioned in 400 letters, are often safe, but often ineffective. Glucosame has some positive effect on arthritis, but most are no better than placebo (help about 30% of those who try it). Most physicians do not recommend treatments that have no more benefit than a placebo, but most patients with arthritis try them anyway.