Description

The active constituents in guarana seed have been found to not be caffeine as was originally thought, but a related substance called guaranine. The two substances are quite similar in the laboratory, but authorities on xanthines and stimulants make a distinction between caffeine, guaranine and mateine in their activity. Guarana and mate are what is called “cooling stimulants,” releasing revitalizing energy to the body as tonics. They are naturally-occurring, food-source substances, with chemical similarity to caffeine, but with important and subtle differences in the way they work in the human body. (read more…)