Radiantly Slim The author converts grams into blocks of protein and carbohydrate and provides food lists and meal plans for these. He distinguishes between carbohydrates with high versus low glycemic indexes, which is a measure of how fast the carbohydrate is digested for each food type. In addition, he adds fat "blocks" to his meal plans and distinguishes between various types of fats, recommending against saturated fats and favoring monounsaturated fats, due to their effect on eicosanoid production.