Some healthy low-carb and sugar-free foods are lean meat, celery, salmon, eggs and avocado. Lean meats are highly recommended for a low-carb diet and include top sirloin steak, pork tenderloin, game meats and lamb. Vegetables such as cauliflower, Swiss chard, spinach and broccoli contain low amounts of carbohydrates and sugar. Dairy products that are low in carbs include cottage cheese, goat milk, butter and plain yogurt.
Avocados are almost free of sugar and contain healthy monounsaturated fats and a lot of fiber. Organic strawberries contain the least sugar of all berries and are rich in vitamin C. Fish such as salmon, tuna, mackerel and catfish are also good sources of low-carb and sugar-free foods. In addition to protein and vitamin B12, fish contain healthy omega-3 fatty acids that offer numerous health benefits.
Eggs are rich sources of protein without any sugar or carbohydrates. Egg whites are cholesterol-free, while egg yolk offers essential vitamins and minerals. Pork tenderloin that is unseasoned provides a healthy balance of protein and fat and contains thiamine, which regulates energy. Vegetable, fruit and nut oils such as olive oil, canola and sunflower oil offer a variety of healthy meal options with low levels of saturated fats.