Minerals are essential nutrients required by the body in varying amounts to support normal functions including muscles, bones, energy metabolism and the nervous system.

Mineral supplements provide one or more minerals in a concentrated form, such as magnesium, zinc or calcium, to complement the amount obtained through food.

Essential minerals include magnesium, calcium, potassium, zinc, iron, selenium, iodine and copper, among others. Each performs different functions within the body.

Magnesium contributes to normal muscle and nervous system function, electrolyte balance, normal energy metabolism and the reduction of tiredness and fatigue.

Zinc contributes to several normal functions, including immune function, cognitive function, fertility and reproduction, and the maintenance of normal testosterone levels.

Calcium is needed for normal bones and teeth and also contributes to normal muscle function, neurotransmission and energy metabolism.

There are several forms, including magnesium bisglycinate, citrate and oxide. They contain different amounts of elemental magnesium and have different characteristics, so the best option depends on individual requirements.

There is no single required time to take magnesium. It can generally be taken at a convenient time that suits the product's directions and your daily routine.

Many mineral supplements are designed for daily use, but requirements and safe amounts vary considerably between individual minerals. Follow the product directions and avoid unnecessarily combining products containing overlapping minerals.

No. Mineral supplements are intended to complement a varied, balanced diet, rather than replace nutrient-rich foods.