This article looks at magnesium citrate, a form of magnesium used in supplements. It explains magnesium's normal functions and the factors relevant to selecting a suitable product.
Magnesium and normal body functions
Magnesium is an essential mineral involved in protein synthesis, energy metabolism, nervous system function and the maintenance of normal bones. Magnesium citrate is one form used to supply magnesium. Absorption and digestive tolerance depend on the dose, formulation and individual circumstances.
Magnesium citrate and absorption
Magnesium citrate is generally more readily absorbed than some less soluble magnesium salts. The elemental magnesium content and the complete formulation should be considered when comparing products.
Magnesium and bone health
Magnesium contributes to the maintenance of normal bones. Adequate intake is important throughout life, but supplementation should reflect dietary intake and individual needs rather than be assumed necessary for everyone.
Magnesium and the nervous system
Magnesium contributes to normal nervous system and muscle function. These established nutritional roles do not mean that a supplement is a proven treatment for stress, anxiety or sleep disorders.
Magnesium and cardiovascular function
Magnesium is involved in electrolyte balance and normal physiological processes. Research into blood pressure does not justify presenting magnesium citrate as a substitute for cardiovascular treatment or medical advice.
Magnesium citrate: meeting nutritional needs
Magnesium citrate can help supply magnesium where additional intake is appropriate. Excessive supplemental intake can cause digestive effects and may be unsuitable in some medical conditions. Product instructions and professional advice should guide use where needed.