Cliff Harvey, Clinical Nutritionist & Researcher (PhD, DipFit, DipNat)
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Cliff Harvey, Clinical Nutritionist & Researcher (PhD, DipFit, DipNat)


Cliff Harvey PhD, DipFit, DipNat, is a registered clinical nutritionist, former world champion and world record-holding strength athlete, and researcher. He was recently named a Fellow of the Clinical Nutrition Association for exemplary service to the field of Clinical Nutrition in Aotearoa

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.

Cliff’s master's degree research focussed on the use of medium-chain triglycerides to mitigate ‘keto-flu’ and encourage faster induction of nutritional ketosis, and his doctoral research on identifying markers of carbohydrate tolerance and appropriateness of different diets to individuals. 

He is the founder of the Holistic Performance Institute, a private tertiary college, and is the author of many books including The Carbohydrate Appropriate Diet, the Ashton-Wylie Book Award finalist Time Rich, Cash Optional and The Credo: 8 Simple virtues for living with passion and purpose in the post-truth era.