The ketogenic diet has been around for 90 years. It was first developed to treat patients with epilepsy, that responded well to the way it resembles a fasting state, while still allowing people to eat as well as acquire nutrients. The keto diet is very limiting, though, cutting out grains as well as specific fruits as well as veggies in addition to sugar-- which as a short-term diet s... https://www.cnet.com/health/how-to-go-keto-a-beginners-guide-to-the-keto-diet/