The average healthy adult has around 3mm of cartilage, to cushion the joints in the knee but a lifetime of use can take its toll on cartilage. A reduction in cartilage may lead to pain and reduced joint mobility. Naturally occurring in the body, glucosamine is one of the key building blocks of cartilage and synovial fluid which plays a role in maintaining elasticity, strength and lubrication of cartilage in joints. It’s involved in normal structure & function of joints and in the maintenance of cartilage health. Always read the label. Use only as directed. If symptoms persist consult your healthcare professional. No added yeast, gluten, lactose, artificial colours or flavours, artificial sweeteners or preservatives or dairy products. Derived from seafood including shellfish. The recommended daily dose of this medicine contains 151mg of sodium. Dosage Take 1 tablet daily with food or as recommended by your healthcare professional.