Fast Fit Keto The list of fatty foods is long and includes bacon, butter, mayonnaise, hot dogs, cream, nuts and more. Who would have thought the answer lie in high fat foods? A person suffering from ulcerative colitis must include the following foods in their diet. A diet low in carbohydrates and high in fat will encourage your body to enter Fast Fit Keto and not to refuel burning fat instead of stockpiling it. Fast Fit Keto diet adherents are encouraged to consume foods like meat, fatty fishes, dairy products such as cheeses, milk, butter and cream, eggs, produce products possessing low carbohydrate concentrations, condiments like salt, pepper and a host of other spices, various needs and seeds and oils like olive and coconut. They all advise eating more protein and limited carbs and inducing the body to burn its own fat.