What is Keto Diet Food: What to Eat and Avoid When trying a ketogenic diet for the first time, it can be hard to tell because ketosis has been achieved. Fortunately, the levels of ketones in the body can be measured in a number of different ways . Ketones are naturally present in the blood, but can also be detected in various forms with breathing and urine. Concentrations of ketones can be measured from all of these. Read more about measuring ketosis Ketogenic low carbs diet on dark stone table Keto-friendly dishes When follow a ketogenic diet, you should have to focus on the following foods: Eggs: Organic hen eggs are the best option Poultry: Chicken and turkey. Fatty fish: Wild caught salmon, herring and mackerel. Organic meat: Grass-fed beef, pork, offal. Dairy products : cream butter and yogurt. Whole fat cheeses : Cheddar, mozzarella, brie, goat cheese and cream cheese. Nuts and seeds: Macadamia nuts, almonds, walnuts, pumpkin seeds, peanuts and flax seeds. Nut Butter: Organic pea...