Mg

Mg is the chemical symbol for magnesium, an essential mineral and one of the major electrolytes in the human body. It supports muscle and nerve function, bone structure, blood-pressure regulation, and hundreds of enzyme reactions involved in energy metabolism. Good food sources include whole grains, nuts, legumes, seeds, and green leafy vegetables. In food technology, magnesium salts serve as firming agents in canned vegetables, nutrient fortificants in supplements and enriched foods, and processing aids such as magnesium carbonate used as an anti-caking agent. Magnesium content is declared on nutrition labels where fortification or content claims are made, and deficiency remains a common concern in diets low in plant foods.