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.
Other non-P.A.D. common causes of leg pain may include: A muscle cramp (also called a charley horse), frequently caused by the following: Dehydration or low amounts of potassium, sodium, calcium, or magnesium in the blood. Medications, such as diuretics, which can cause you to lose too much fluid or minerals.