If you are looking for vegan-friendly joint support, Doctor's Best® Vegan Glucosamine Sulfate with GreenGrown® Glucosamine may be just what you need! Each serving of Vegan Glucosamine Sulfate delivers 1,500 mg of GreenGrown glucosamine, a patented form of glucosamine that is free from allergens and suitable for vegans. Gluten, soy and pesticide free.