Ketogenic Diet 101 The ketogenic diet is a very low carb, very high-fat diet. It has recently gained a lot of popularity in the wellness sphere because of some of its health benefits. A ketogenic diet has been shown to help some people lose weight (yes, even with high fat). It can also help improve certain health conditions, like epilepsy in children. Read on for some of the lowdown on how it reprograms your metabolism (for “ketosis”), and whether or not it’s something for you to consider.