ChatGPT Zero calorie foods are those that contain very few calories and are often consumed as a part of a weight loss or calorie-restricted diet. These foods typically have a high water content, fiber content, and are low in fat, sugar, and carbohydrates Examples of zero calorie foods include celery, cucumber, lettuce, spinach, broccoli, cauliflower, zucchini, tomatoes, mushrooms, and peppers. Other low calorie options include fruits such as watermelon, strawberries, and grapefruit. Examples o