Magnesium is found mainly in the bones, muscles, and soft tissues of the body. It has many important regulatory functions and is essential for the normal functioning of the nervous system, heart, and muscles. Magnesium contributes to normal energy-yielding metabolism, electrolyte balance, and protein synthesis. It also helps maintain normal bones and teeth and supports normal muscle function. Magnesium helps reduce tiredness and fatigue. The need for magnesium may be increased by factors such as physical exertion and sports, an unbalanced diet, recovery from illness, diabetes, excessive alcohol consumption, and the use of certain medications. Daily dose (1 tablet) contains: Magnesium 375 mg Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.