Significantly reducing what you eat on Monday and Tuesday and combining it with a low-carb, healthy-fat lifestyle will lead to better and longer life according to a new book.
In What the Fast! authors Professor Grant Schofield, Dr Caryn Zinn and chef Craig Rodger draw on the latest research in nutrition, biochemistry, medicine and behavioural science to develop the concept of super-fasting.
Wallace talks to Dr Caryn Zinn about how to go about fasting and what its health benefits are.