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.
1 Low levels of minerals, such as sodium, magnesium or potassium, in the body can be one of the reasons for Charlie horses. 2  Deficiency of calcium in pregnant women can also be another reason for the onset of Charley horse.  Low level of liquids in the body, while exercising, might be a probable cause of Charley horse.
What Causes a Charley Horse. A charley horse can be a sign of several conditions. The cramps can be related to spinal stenosis, a natural wear-and-tear condition that leads to the narrowing of the open spaces within your spine, which in turn puts pressure on the nerves that travel through it.ighttime charley horses could also stem from peripheral artery disease, which causes the narrowing and hardening of arteries that supply blood to the legs and feet.