What hormone is responsible for regulating sodium and potassium levels in the body?

Aldosterone is the hormone responsible for regulating sodium and potassium levels in the body. It is produced by the adrenal glands, which are located above the kidneys. This hormone plays a crucial role in maintaining electrolyte balance and blood pressure. Specifically, aldosterone prompts the kidneys to reabsorb sodium and excrete potassium. By increasing sodium retention, aldosterone also helps to retain water, which supports blood volume and blood pressure.

Understanding the role of aldosterone is important in contexts such as hypertension management and evaluating conditions that can lead to electrolyte imbalances, which can affect overall health. The other hormones listed, while having significant functions in the body, do not primarily focus on regulating sodium and potassium levels.