Magnesium is an essential mineral for many enzymatic processes within the body. Dietary intakes are often found to be low, and low levels are exaggerated due to modern lifestyle factors which increase demand such as stress, smoking, alcohol consumption and a high sugar intake. Magnesium is required for normal psychological function and normal nerve function. Magnesium is also required for a reduction in tiredness and fatigue, normal electrolyte balance, normal protein synthesis and for normal muscle function including the heart muscle. Magnesium is a key structural mineral in bones and teeth and adequate levels are required for their maintenance. Magnesium citrate 250mg is a high strength supplement that is gentle on the stomach.