Today's true sports drinks are still the classic Gatorade -- packed with the electrolytes potassium, magnesium, calcium, and sodium to provide energy during intense workouts -- as well as competitors such as Cytomax, Allsport, and Accelerade.
Certain medications can also cause Charley horse as a result of their side effects. Drugs such as statins or medicines prescribed for lowering cholesterol, blood pressure, diuretics, asthma medicines like terbutaline and salbutamol, morphine and lithium can trigger muscle spasms.
If you experience toe or foot cramps, spasms, it's likely that you're also consuming aspartame-laced products, such as chewing gum, diet drinks and foods. Aspartame produces charley horses and is bad for your muscles and nerves. Itf also causes brain tumors and deformities in fetuses.