see digestive systemdigestive system, in the animal kingdom, a group of organs functioning in digestion and assimilation of food and elimination of wastes. Virtually all animals have a digestive system. In the vertebrates (phylum Chordata, subphylum Vertebrata) the digestive system is very complex.
For information on ketogenic diets as a lifestyle choice or for weight loss, see Low-carbohydrate diet and No-carbohydrate diet. The ketogenic diet is a high-fat, adequate-protein, low-carbohydrate diet that in medicine is used primarily to treat difficult-to-control (refractory) epilepsy in children. The diet forces the body to burn fats rather than carbohydrates.
Reddit. The main focus of the ketogenic diet is to get the macronutrient ratio right. Ideally, you should be eating 5-10% calories from carbs (net carbs), 15-30% of calories from protein and 65-75% calories from fat (or even more) in order to benefit from ketone bodies produced by your liver.