However, most ketogenic diets supply moderate rather than high levels of protein. This eating plan certainly contradicts most people’s understanding of a healthy, balanced dietwhich typically promotes the consumption of protein, fat and carbohydrates. From an evolutionary perspective, ketosis is a normal adaptive response which enabled humans to withstand periods of famine throughout history. Today, this natural physiological mechanism has been exploited by a number of low-carb diet regimes. The aim of ketogenic diets is to send the body into a state of ‘ketosis’ by using a very strict low-carb diet.