Formulated with 320mg of Magnesium -using four forms of magnesium, this high-strength one-a-day tablet also combines the power of three co-ingredients: Vitamin B6, Vitamin D3, and Manganese. The combined ingredients have been specially chosen to work in unison to support muscle function, and nervous system health and assist healthy bone development: Support muscle health. Reduces muscle cramps when dietary intake is inadequate Relieve muscle stiffness and cramps, muscle aches and pains when dietary intake is inadequate Support bone health and bone mineralisation Support cardiovascular system health and energy production