Glucosamine Hydrochloride contains 98% glucosamine, whereas Glucosamine Sulfate contains 75% glucosamine. Glucosamine HCL and GlucosamineSulfate behave similarly in the gastrointestinal environment to liberate theactive glucosamine compound for absorption without causing gastric upset. Areduced consumption of red meat, refined sugar, alcohol and caffeine, loweringcholesterol levels and maintaining a light exercise program will also bebeneficial while on this treatment. This product is especially good for those with high blood pressure, on salt orpotassium restricted diets or those having adverse reactions to sulfate.