21st Century MgO Magnesium Oxide Tablets, 400 mg, 90 count

21st Century Magnesium Oxide delivers 400 mg per serving and promotes energy. Magnesium is necessary for the metabolism of calcium, Vitamin C, phosphorus, sodium, and potassium. Magnesium is also essential for nerve and muscle function.

• 21st Century Magnesium Oxide delivers 400 mg per serving
• Essential for protein synthesis and cellular energy
• Gluten Free