Dietary magnesium refers to the amount of magnesium that is present in foods and consumed through diet. Magnesium is an essential mineral that plays a crucial role in various bodily functions, including muscle function, nerve transmission, energy metabolism, and bone health. Adequate intake of dietary magnesium is necessary for maintaining good health, as the body does not produce it naturally. Foods rich in magnesium include leafy greens, nuts, seeds, whole grains, legumes, fish, and dairy products.