Cliff Harvey PhD, DipNat, DipFit is a naturopath, registered clinical nutritionist, and researcher and educator. His areas of research and practice focus are performance, 'Carb-Appropriate' diets, and complex autoimmune conditions. Cliff is also former world champion and world record-holding strength athlete. He has been coaching people ranging from world champion athletes through to the chronically and acutely unwell to perform at their best, since the 1990s. He is the founder of the Holistic Performance Institute, a private tertiary college, and a board member and Fellow of the Clinical Nutrition Association, the Sports Nutrition Association, and a technical advisor to the Health Coaches Association of New Zealand & Australia.