It is very likely that weight loss (however it is done) will improve symptoms from osteoarthritis in the knees. By decreasing the load, there is less stress on the affected joints. We have a large section on this topic on our website:
Weight and Arthritis
January 23, 2009 By
I am 80 pounds over-weight and plan to have lap-band surgery. Will getting to my appropriate weight help with my arthritis?