Zero carb foods

Natural foods can have zero carbohydrates in them. Such are raw beef, chicken, and pork, to name just a few. The problem can occur during cooking. Adding vegetables or sour cream will add some carb grams.

Many of ready low carb foods have zero carbs but too much protein in them. Since about 1/2 of protein is converted into carbs by the body, the true carb amount can become far from zero.

More important is the ratio fat:carbrotein. If a food in high in fat (of course, "good" fat is best) it can afford more carb grams and still help ketosis. Little carbs but also little fat can prevent your body from getting into ketosis.