The Concept of Energy-Density
When considering ultra-low-calorie foods, it's helpful to understand the concept of energy density. Energy density refers to the number of calories in a specific amount of food. Foods with a low energy density, such as fruits and vegetables, have a high water and fiber content. This provides volume and weight, helping you feel full on fewer calories. For instance, you can eat a large portion of leafy greens for the same number of calories as a very small amount of a high-fat snack. This is the key principle behind identifying what can you eat for 17 calories that will actually provide satisfaction.
Specific Foods Around the 17-Calorie Mark
Egg White
One of the most precise examples of a food with approximately 17 calories is the white from a large egg. Egg whites are an excellent source of pure protein, containing virtually no fat or cholesterol. This makes them a perfect addition for anyone focusing on protein intake with minimal calories. While you wouldn't eat just one egg white as a meal, adding one or two to a stir-fry, a soup, or scrambling them into a larger vegetable dish is an effective way to boost protein without spiking the calorie count.
Zucchini
A 100-gram serving of zucchini contains just about 17 calories. Zucchini is made mostly of water and is rich in fiber, potassium, and vitamins A and C. Its versatility is a major benefit; it can be grilled, sautéed, or spiralized into 'noodles' to replace higher-calorie pasta. Given its low-energy density, you can eat a generous portion of zucchini to feel more satisfied than with a high-calorie snack.
Apricot
For a touch of sweetness, a single raw apricot clocks in at around 16 to 17 calories. Apricots are a great source of vitamins A, C, E, and K, as well as fiber. The fiber content helps support digestion and gut health. An apricot makes for a perfect ultra-low-calorie snack to satisfy a sweet craving naturally. The small fruit is also loaded with beta-carotene, an antioxidant that is good for vision and skin.
Romaine Lettuce
Approximately 100 grams of romaine lettuce is also around 17 calories. While often dismissed as nutritionally sparse, romaine is actually a good source of folate and vitamin K. Its high water content and crisp texture make it an excellent, hydrating base for a salad. A generous bowl of romaine can add significant volume to a meal for a negligible calorie cost.
Celery
Another classic low-calorie choice, celery has a high water content and can be very filling. While a single medium stalk has around 6 calories, you can enjoy about three stalks for roughly 17 calories. Celery is a great source of vitamin K1 and contains anti-inflammatory plant compounds. It's the perfect crunchy vegetable for snacking or adding to salads and soups.
Other Ultra-Low Calorie Foods to Consider
- Cucumbers: These are one of the lowest-calorie vegetables due to their high water content. A half-cup (52g) has only 8 calories.
- Radishes: A cup of sliced radishes has about 19 calories, offering a spicy kick with very few calories.
- Strawberries: A cup of sliced strawberries contains only about 53 calories, meaning you can enjoy a smaller portion of these antioxidant-rich berries to stay well under the 17-calorie mark.
- Watercress: This leafy green is incredibly nutrient-dense, providing just 4 calories per cup.
- Mushrooms: One cup of white button mushrooms has about 15 calories, adding a savory, earthy flavor to dishes.
Comparison of Ultra-Low Calorie Options
| Food (Quantity for ~17 kcal) | Primary Benefit | Water Content | Fiber Content | Protein Content |
|---|---|---|---|---|
| Egg White (1 large) | High-quality protein | High | Low | High |
| Zucchini (100g) | High volume, vitamins | High | Moderate | Low |
| Apricot (1 raw) | Sweetness, vitamins, fiber | Moderate | Moderate | Low |
| Romaine (100g) | Hydrating, vitamins | Very High | Moderate | Low |
| Celery (3 stalks) | Crunch, water content | Very High | Moderate | Low |
Incorporating These Foods into Your Diet
Utilizing ultra-low-calorie foods effectively involves pairing them with other nutrient-rich ingredients to create a balanced meal. You can use large quantities of zucchini or romaine lettuce as a base and add a single egg white, some lean protein like fish or chicken breast, and a low-calorie dressing for a complete meal. Eating in this manner leverages the principle of low energy density, allowing you to consume a physically large and satisfying portion without a heavy calorie load, which is beneficial for weight management. Focusing on volume rather than restriction helps manage appetite and cravings. For more on this, you can learn about how energy density works to help you feel full on fewer calories.
Conclusion: Eating Smart at Any Calorie Level
While knowing what can you eat for 17 calories is an interesting exercise, the larger takeaway is to understand the value of nutrient-dense, low-energy-density foods. These are the items that provide the most nutritional bang for your buck and help support long-term health and weight management goals. Rather than rigidly counting every single calorie, a focus on incorporating these types of foods—like an egg white for protein, zucchini for volume, or an apricot for sweetness—will be more sustainable and beneficial in the long run. By prioritizing fresh, whole foods high in water and fiber, you can keep your calorie intake in check while feeling nourished and satisfied.