proportion of animal fats in the daily diet correlates with the development of diseases that can be influenced by the diet, for example the cardiovascular Regal Keto Diet system, according to Bernhauser. Our cells are programmed to produce energy primarily from carbohydrates. Glucose , the smallest unit of carbohydrates, is our number one energy supplier. With empty carbohydrate stores, the body is forced to change its metabolism in order to maintain all important body functions.
https://www.selfgrowth.com/articles/healthy_school_lunches_yes_we_can