Kinetica Effervescent Electro-C tabs make taking key electrolytes during training or competitions easy and convenient! During intense workouts, you lose salts through sweating which can lead to muscle cramps and a salt imbalance in the body. These tabs contain a scientifically engineered combination of 250mg of sodium, 75mg of magnesium and 50mg of both potassium and calcium. They also include 80mg of additional Vitamin C (100% RDA). Rapidly-absorbing and refreshing, it will help hydrate, combat tiredness and fatigue, and contribute to normal muscle function. Suitable for vegetarians and free of artificial flavourings & colours. Only 9 Kcal per tablet.