Magnesium is a mineral that is involved in over 300 biochemical processes in the body. One of its most important functions is that it plays a key role in producing energy and maintaining muscle, heart and nerve function. Unfortunately most people do not have sufficient levels for optimal health, as studies suggest that 50-90% of people are deficient in magnesium. Muscle stiffness, chronic irritability and fatigue are common signs of deficiency. Glycine is well known as a calming amino acid and is combined with magnesium in Magnesium Glycinate. This combination is easily absorbed and does not have a laxative effect like some forms of magnesium. Due to the calming and relaxing effect of both glycine and magnesium this combination has been used successfully for chronic pain and muscle tension, as well as to help improve sleep quality. Magnesium Glycinate is a chelated magnesium supplement that offers better absorption and gastrointestinal tolerability.