Looking to add more zinc and magnesium to your diet? Our Zinc & Magnesium Capsules are ideal for anyone looking to supplement their regular diet. One dose will provide you with 20mg of zinc and 300mg of magnesium. Magnesium contributes to a reduction of tiredness and fatigue, contributes to normal protein synthesis and energy yielding metabolism (aka generating energy from nutrients) and is essential for the maintenance of normal teeth and bones.