What Is the Impact Of Total Fat on a Keto Diet? What Animal Proteins are Best for a Keto Diet? What Veggies Should You Eat on a Keto Diet? Are Nuts a Keto-Friendly Choice? Are Eggs a Keto-Friendly Choice? How Does Dairy Fit Into a Keto Diet? Beans and Legumes: Are They Keto-Friendly? Caffeine and Keto: Is it Possible? Keto diet is a low-carb eating plan designed to force your body into ketosis – an internal metabolic state where fat is broken down for energy instead of starving itself of energy altogether. Staying in ketosis requires restricting carb intake sufficiently so as to maintain stable blood sugar and insulin levels, keeping ketosis as close as possible.