Advance hydration ultra low GI energy drink. Blend of key performance electrolytes. Enhanced with the vitamins folate, niacin and pantothenic acid. Ultra low GI energy drink to hydrate and sustain energy. No caffeine. I'm proud to be a part of the Australian team behind this cutting edge breakthrough in hydration drinks. So whether you're working, playing, training, or competing, enjoy Thorpedo, stay hydrated and energized and feel great all day. Thorpedo contains no banned performance enhancing substances. Glycerin index (GI) is a ranking of carbohydrate according to their effect on blood glucose levels. The GI of this product has been tested according to scientifically proven methodology.