I have started having bad knee problems and my last MRI showed thinning in
the cartilage in my knee.   I am looking forward to the results from
National Center for Complementary and Alternative Medicine (NCCAM)
"Glucosamine/Chondroitin Arthritis Intervention Trial (GAIT)"  study and
have decided to give these supplements a try.

One thing I am finding hard is determine if there is really a difference
betweens supplement brands.   Also if it is better to take pills, capsules,
powders or if it does not matter.  I have been recommended TruWell (costing
$2/day) to Trader Darwin's (costing 20 cents/day).   Where is a good place
to get brand quality and comparison information?   Is there really a
difference?  Thoughts?