Q. Muscles don’t move without orders from the brain and some minerals, which are known as electrolytes, play a role in helping the messages get through, says Joel Press, M.D., medical director of the Center for Spine, Sports, and Occupational Rehabilitation at the Rehabilitation Institute of Chicago. Dr. Press says, of all the electrolytes this is one of the most important.
A. Magnesium helps other electrolytes do their jobs. When you don’t eat enough magnesium rich foods, minerals such as calcium and potassium can’t get into muscle-fiber cells. People who are depleted of magnesium tend to have greater irritability of the muscles and nerves.