LifeSource Vitamins Electrolyte Formula is loaded with nutrients designed for a perfect balance of all 6 electrolytes plus support minerals and BioPerine (black pepper fruit extract) that work together to provide complete hydration without worrying about having an upset stomach that you find with powders so you can feel and perform your best in life. Electrolytes are substances in bodily fluids that help spur muscular and neural activity. The two key ones for maintaining bodily fluid balance and blood pressure are sodium and potassium. Other electrolytes include chloride, calcium, magnesium, and phosphate. An electrolyte imbalance in the body’s fluid levels can occur through several means, including vomiting, diarrhea, and excess alcohol consumption. The most common cause, especially for runners, is from dehydration owing to heavy sweat losses. When you sweat, your body loses fluids and electrolytes. That’s a normal process, easily addressed through diet and drinking to replenish your thirst. However, when you lose so many electrolytes that an imbalance occurs between the fluid levels in and around your body’s cells, your performance will suffer—your muscular and nervous systems won’t work as well. (This is different from your muscles cramping; electrolyte loss is no longer believed to be the main cause of leg and other muscle cramps.)