Meats are the only foods that are truly free of carbohydrates, meaning no-carb snacks must consist of turkey roll-ups, unbreaded cooked chicken, cubed beef and other similar items. Sushi minus starchy vegetables and rice is another no-carb snack option.
Other meat snacks include beef and turkey jerky, summer sausage and other cured meats, and even canned fish, such as sardines. However, with nutritionists and medical doctors recommending eating no more than 3 ounces of meat per day, most people opt to include low-carbohydrate snacks into their diets. Such snacks include boiled eggs, low-fat cheese slices, low-fat yogurt, low-fat cottage cheese and nut butters.
Most vegetables contain significant carbohydrates. However, some are low enough in carbs to be considered low-carb snacks. These include leafy vegetables, such as lettuce, spinach, kale and Swiss chard, as well as mushrooms, asparagus, broccoli and cauliflower. Broccoli and cauliflower are often eaten as sacks in their raw form, while mushrooms, asparagus and leafy vegetables are more generally eaten cooked whether as side dishes or snacks.
Where liquid snacks are concerned, there are a number of no-carb beverages available, including black coffee, diet sodas and other artificially sweetened soft drinks. However, dairy products, such as milk, are relatively high in carbohydrates.