Essential minerals that support muscle function include calcium, magnesium, and potassium. Calcium is crucial for muscle contractions, allowing muscles to shorten and generate force. Magnesium plays a role in muscle relaxation and energy production. Potassium helps transmit electrical signals in the body, influencing muscle movement. A deficiency in any of these minerals can impair muscle performance, causing cramps or weakness. Therefore, adequate intake through diet or supplements is essential for optimal muscle health and function.