Magnesium may be small but it is mighty. It doesn’t take up much room in the body - about 25 g of magnesium is in an adult body - but it’s the fourth most abundant mineral in the body, is responsible for over 300 biochemical reactions in the body, and helps the body function in almost every capacity. Specifically, it helps keep the heart beat steady, keeps bones strong, maintains normal nerve and muscle function, regulates glucose levels, and supports a healthy immune system. It contributes to energy production and the composition of teeth. It also helps regulate other nutrients within the body, like calcium, potassium, and Vitamin D. Magnesium is a powerhouse and people should start paying attention to it...especially considering an estimated 80% of Americans are deficient in magnesium.