Magnesium regulation refers to the body's ability to maintain appropriate levels of magnesium, an essential mineral involved in numerous biochemical processes. The kidneys play a crucial role in this regulation by filtering excess magnesium from the blood and excreting it through urine. Hormones like parathyroid hormone also influence magnesium levels by promoting its absorption in the intestines. Dietary intake is another important factor in magnesium regulation. Foods rich in magnesium, such as leafy greens, nuts, seeds, and whole grains, help maintain adequate levels. Imbalances can lead to health issues, including muscle cramps, fatigue, and cardiovascular problems, highlighting the importance of proper magnesium management.