Non-carbohydrate food items include lean proteins, fats, herbs, spices and beverages that are not added to carbohydrate-rich mixers. Low-carbohydrate vegetables such as lettuce typically contain less than 5 grams of carbohydrates per serving.
Lean proteins do not contain carbohydrates as long as they are boiled, grilled, baked or broiled and do not have any added flour or breading. Sauces and marinades add carbohydrates to lean proteins, so consumers should inspect ingredients before adding them. Fat is a non-carbohydrate food and includes butter, margarine, cheese and cream. The healthiest fats to consume are fish oil and vegetable oil, which are also good sources of omega-3. Herbs and spices do not contain any carbohydrates, so they are a good option for seasoning lean proteins.
Beverages can be absent of carbohydrates, but only if they are diet and have no added sugar. Liquors do not have any carbohydrates as long as they are not added to mixers. Low-carbohydrate vegetables include celery, tomatoes, mushrooms, onions and green leafy vegetables. Non-carbohydrate foods are typically high in protein but low in essential vitamins.
The body, especially the brain, needs carbohydrates to function properly, so people should consult with a doctor or dietitian before going on any diet that avoids carbohydrates.