EFS (Electroylyte Fuel System) is unlike any other endurance drink mix available. EFS combines the latest clinical research and nutritional technology with input from some of the best endurance athletes in the world. The result: a great-tasting energy drink that provides ALL the ingredients you need to maximize endurance during exercise. With EFS, you don't need to carry extra electrolyte pills or bother adding anything to your energy drink anymore.

Fluid loss plays a major factor in performance. Studies show that when you lose 2-3% the body's fluid through sweat, performance decreases by up to 7%. This can be the difference between winning and not even finishing. Clinical research shows endurance athletes require much higher levels of electrolytes than most sports drinks provides. EFS delivers all five electrolytes (over 1,000 mg/serving) in the levels endurance athletes need to prevent cramping and stay hydrated.

EFS is the first endurance drink to be fortified with clinically effective doses of the amino acids Glutamine, Leucine, Iso-leucine and Valine. These key amino acids have been shown to improve glycogen re-synthesis and delay central (mental) fatigue through their positive influence on the tryptophan/branched chain amino acid ratio. EFS is fortified with free-form amino acids (not complete protein) it's a light, easy to digest, great-tasting solution to heavier protein drinks. EFS is also fortified with 200% RDA of vitamin C to enhance the body's immune function, fight free radicals and keep you healthy for future training and racing.

Consuming carbohydrates during exercise improves energy and endurance performance by supplying energy for muscles to use when glycogen stores begin to drop. The latest clinical research shows a mix of carbohydrate sources provide superior energy and endurance over a single carbohydrate source (2,3). EFS was specifically formulated to deliver a clinically effective mix of complex carbohydrates, glucose (dextrose) and sucrose to maximize performance and absorption.