From the Manufacturer What Is Magnesium Citrate? Magnesium is an important mineral for your health since it's required for more than 300 biochemical reactions. However, the diets of many Americans are deficient in magnesium. Each vegetarian capsule of our Magnesium (Citrate) supplement contains 100 mg. Use magnesium to support bone health, the immunological system, the cardiovascular system, and more. Magnesium (Citrate) Benefits 1. Aids in preserving healthy neuron and muscle function2. Encourages heart health3. Supports a healthy immune system4. Helps maintain strong, healthy bones Magnesium (Citrate) 100mg 100ct