Dietary Supplement. Glucosamine 1500 mg, chondroitin 1200 mg per daily serving. Joint health combo proven effective in NIH study. Promotes joint comfort, flexibility and movement. Easy-swallow smaller tablets. Clinically tested levels. Natrol Glucosamine Chondroitin contains the powerful combo proven effective in promoting joint comfort, flexibility and movement in the federally funded joint care study sponsored by the National Institutes of Health (NIH). Glucosamine and Chondroitin have been studied extensively for their role in promoting overall joint health. Glucosamine has been shown to regenerate cartilage tissue, while Chondroitin helps promote lubricating fluids for your joints and cartilage. Together, this combo provides powerful ingredients backed by solid science to help keep your joints healthy and comfortable. No yeast, wheat, corn, milk, egg, soy, glutens, artificial colors or flavors, added sugar, starch or preservatives. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)