Feinman et al (2015) provides suggested definitions for different levels of carbohydrate diets which have been adopted by other recent pioneers of the low carbohydrate method including Dr David Unwin (Kelly, Unwin, & Finucane, 2020).

A very low carbohydrate diet is defined as <50g of carbs per day (<10% energy from carbs), low carb <130g (<26% energy from carbs), Moderate carb 130-230g and high carb >230g (>45% energy). A low carbohydrate approach for supporting diabetes management is now internationally recognised (Evert, et al., 2019; Davies, et al., 2018)