What is the role of sodium in the body?

Sodium is a mineral that your body must have in order to function properly. The primary source of dietary sodium is sodium chloride, or salt, more than three-quarters of which comes from processed foods. read more

Sodium plays a key role in normal nerve and muscle function. The body obtains sodium through food and drink and loses it primarily in sweat and urine. Healthy kidneys maintain a consistent level of sodium in the body by adjusting the amount excreted in the urine. read more

Sodium is a mineral that, together with potassium and calcium, regulates the body's water balance, maintains normal heart rhythm, and is responsible for nerve impulse conduction and muscle contraction. read more