10 Foods That Contain Almost No Calories
When it comes to maintaining a healthy diet or aiming for weight loss, consuming low-calorie foods can be highly effective. Certain foods are so low in calories that they are often referred to as “almost zero-calorie foods” because the body burns nearly as many calories digesting them as they contain. Here’s a list of such foods, along with their health benefits.

1. Celery
- Calories: ~14 per 100g
- Nutritional Benefits: Celery is composed of around 95% water, making it extremely low in calories. It is rich in fiber, which promotes digestion and helps in maintaining a feeling of fullness. Additionally, it contains vitamins A, K, and C, along with antioxidants.
2. Cucumber
- Calories: ~16 per 100g
- Nutritional Benefits: Known for its refreshing taste, cucumber is another hydrating, low-calorie food. It contains potassium, magnesium, and vitamin K. Its high water content makes it ideal for hydration and detoxification.
3. Lettuce
- Calories: ~15 per 100g
- Nutritional Benefits: Lettuce, particularly the iceberg variety, is mostly water with minimal calories. It provides fiber, folate, and vitamin K, making it a great addition to salads and sandwiches for bulk without the calories.
4. Spinach
- Calories: ~23 per 100g
- Nutritional Benefits: Despite its slightly higher calorie count compared to some other greens, spinach is nutrient-dense and packed with iron, magnesium, and vitamins A and C. It adds bulk and nutrients to meals without adding many calories.
5. Carrots
- Calories: ~41 per 100g
- Nutritional Benefits: While slightly higher in calories than leafy greens, carrots are still considered low-calorie. They are rich in beta-carotene, fiber, and antioxidants, supporting eye health and digestion.
6. Lemon and Lime
- Calories: ~20 per 100g
- Nutritional Benefits: Lemons and limes are low in calories but high in vitamin C. They can enhance the flavor of water or dishes without significantly increasing the calorie content.
7. Berries (Strawberries, Raspberries, and Blackberries)
- Calories: ~32–43 per 100g
- Nutritional Benefits: Berries are packed with antioxidants, fiber, and vitamins. They are low in calories and have a natural sweetness, making them a healthy snack option.
8. Bell Peppers
- Calories: ~20 per 100g
- Nutritional Benefits: Bell peppers are low in calories and rich in vitamin C, fiber, and antioxidants. They add color and flavor to dishes without increasing the calorie count.
9. Zucchini
- Calories: ~17 per 100g
- Nutritional Benefits: Zucchini is another low-calorie vegetable with a high water content. It provides vitamins A, C, and potassium, making it an excellent addition to stir-fries and salads.
10. Mushrooms
- Calories: ~22 per 100g
- Nutritional Benefits: Mushrooms are low in calories and rich in B vitamins, selenium, and antioxidants. They are filling and can be used as a meat substitute in certain recipes.
Conclusion
Foods that are low in calories are typically high in water and fiber content, making them ideal for weight management and maintaining overall health. Including these foods in your diet can help you feel fuller for longer without consuming excess calories.