Understanding the Calorie Count of Egg Whites
The number of calories in one whole white, also known as the albumen, depends directly on the size of the egg. The larger the egg, the more albumen it contains, which leads to a slightly higher calorie count. Since egg whites are primarily made of water and protein, they are a popular food choice for those seeking a high protein, low-calorie diet. Separating the white from the yolk is a common practice to reduce fat and cholesterol intake, though it also means forgoing many of the essential vitamins and minerals housed in the yolk.
Nutritional Breakdown by Egg Size
To give a more precise answer to how many calories are in one whole white, it's important to consider the standard sizes of chicken eggs. The figures below are based on general nutritional information, and specific brand data may vary slightly. A raw egg white contains virtually no fat or cholesterol, making it a very clean protein source.
Large Egg White:
- Calories: ~17-20
- Protein: ~3.6-4 grams
- Fat: 0 grams
- Carbohydrates: <1 gram
Medium Egg White:
- Calories: ~14-16
- Protein: ~3.8 grams
- Fat: Trace amounts
- Carbohydrates: <1 gram
Small Egg White:
- Calories: ~13
- Protein: ~2.7 grams
- Fat: 0 grams
- Carbohydrates: <1 gram
As you can see, the difference is not substantial, but it can be relevant for those tracking macros meticulously. It is also important to remember that these figures are for the egg white alone, with no added ingredients during preparation.
Egg White vs. Whole Egg: A Calorie Comparison
While the focus here is on how many calories are in one whole white, it's worth comparing it to the calorie count of a whole egg to put things in perspective. The yolk is where the majority of the fat, cholesterol, and many vitamins are stored, which is why it significantly increases the total calorie count.
| Feature | One Large Egg White | One Large Whole Egg |
|---|---|---|
| Calories | ~17-20 calories | ~72-74 calories |
| Protein | ~4 grams | ~6 grams |
| Fat | 0 grams | ~5 grams |
| Cholesterol | 0 mg | ~186 mg |
| Key Nutrients | Primarily protein, riboflavin, selenium | Vitamins A, D, E, K, B complex, choline, iron, zinc |
This comparison table clearly demonstrates why egg whites are often favored by those looking to cut fat and calories, while whole eggs offer a more complete nutritional profile due to the yolk.
Practical Applications for a Low-Calorie Diet
Egg whites are incredibly versatile and can be incorporated into many meals to boost protein intake without adding significant calories. They are a staple in recipes for weight loss and muscle building due to their high protein-to-calorie ratio.
- Healthy Egg White Scrambles: Mix egg whites with a variety of vegetables like spinach, bell peppers, and onions for a low-calorie, high-volume breakfast.
- Protein-Packed Smoothies: Pasteurized liquid egg whites can be blended into smoothies for an easy, raw protein boost.
- Baking with Egg Whites: Use them to make meringue, protein pancakes, or low-fat baked goods.
- Mixed Egg Meals: For a balance of nutrients, some people combine one whole egg with several egg whites to increase protein while controlling cholesterol and fat intake.
Conclusion
Ultimately, understanding how many calories are in one whole white is straightforward, with the number hovering around 17-20 for a large egg. While egg whites are a fantastic, lean source of protein, it is important to remember that the yolk contains many vital nutrients. For a well-rounded diet, consuming whole eggs offers the most comprehensive nutritional benefits. However, for those with specific dietary goals focused on reducing fat and calories, egg whites are an excellent and versatile option. Whether you choose the whole egg or just the white, both can be part of a healthy eating plan depending on your needs.
UT Physicians provides further insight on the benefits of whole eggs versus just the whites.
Can you eat raw egg whites?
Consuming raw, pasteurized egg whites is generally safe, though there is a minor risk of salmonella. Thorough cooking eliminates this risk.