Researchers at Harvard Medical School found that six of ten rheumatoid arthritis patients taking undenatured type II collagen for three months showed substantial improvement, while one patient recovered completely. In addition, there were no side effects.

In a 90-day, double-blind, placebo-controlled, follow-up study on patients with severe rheumatoid arthritis, Harvard scientists found that 28 patients taking undenatured type II collagen showed significant improvement compared to the placebo group, while four patients recovered completely.

Source: Trentham DE, Dynesius-Trentham RA, Orav EJ, Combitchi-D, Lorenzo C, Sewell KL, Hafler DA, Weiner HL, Effects of Oral Administration of Type II Collagen on Rheumatoid Arthritis, Science, 261:1727-1730, 1993.*

*UC-II brand of undenatured type II collagen was not used in this study.