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.
Causes of Charlie Horses In Legs: Cramps In Legs & Feet At Night. Charlieâ Horse is a painful bruise in quadriceps muscle of anterior or lateral part of thigh. The pain mostly occurs in the calf muscle when we get up in morning while stretching our body. Mineral deficiency: Low levels of mineral such as potassium and calcium may lead to cramping.