A year ago, my chiropractor recommended this product as superior because he knew I was using another fibromyalgia glucosamine compound. It really improved ability to move painlessly. Now , after blood tests for antibodies, I've been told my inflammation is MCTD. I take 2 a day, and am on a Paleo type diet and feel much better. Thank you to Earth Turns for a great price, prompt delivery and extra nice customer service.