The gluten-free, soy-free and genetically modified Doctor’s Best complex is a combination of glucosamine, chondroitin, MSM, potassium and sodium.The product includes, among others:Potassium - necessary for transmitting electrical impulses from cell to cell - action potential and is responsible for maintaining the correct electrical voltage on cell membranes - resting potential. In addition, it helps maintain muscle tension and proper blood pressure, and is also involved in the synthesis of amino acids. Glucosamine - is supplemented mainly by athletes - especially those who are exposed to joint damage. This substance reduces the rate of connective tissue destruction, and as a result, delays the progression of degenerative disease. Chondroitin - a natural building block of joint cartilage. A substance that is responsible for eliminating friction. It is often used together with glucosamine. Chondroitin is most often used by athletes, especially runners and weightlifters. MSM - a natural sulfur compound - sulfur in the human body occurs in the amount of 0.2 mg per kilogram of body weight. It is also found in amino acids, including methionine and cysteine. It is recommended to take four capsules a day - can be combined with meals.