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The mission of Greenfield Fitness Systems is to give you everything you need to achieve amazing feats of physical and mental performance without destroying your body and mind. Under the direction of world renowned fitness expert Ben Greenfield, we combine cutting-edge science, holistic nutrients, self-quantification, biohacking, and strategies straight from the trenches to provide you with every plan, supplement, food, tool, test, and solution to bring you to the next level - whether you want to do an Ironman triathlon or just shed a few pounds.