Calories in Egg White

Updated July 2026 · Reviewed by CaloriesCalc Team · Source: USDA FoodData Central

52
kcal
per 100g
10.9
g
Protein
0.17
g
Fat
0.73
g
Carbs
0.0
g
Fiber
17
kcal per large egg white (33g)
52
kcal per 100g
15
kcal per oz (28g)
Egg White nutrition facts and calories per 100g
🔥Only 17 kcal per egg white
💪84% of calories from protein
🥗Near zero fat — 0.17g/100g
🔬Riboflavin — 19% Daily Value
Potassium — 163mg per 100g
😌Keto and virtually carb-free

Calculate Calories for Any Egg White Weight

Weight100g

Nutrition Facts

Per 100g egg white

* % Daily Value based on a 2,000 kcal diet.


Quick summary: Egg white contains just 17 calories per large egg white (52 kcal/100g) with 10.9g protein and virtually zero fat. It is one of the purest protein sources available — nearly all calories from protein (84%). Best choice for maximising protein with minimum calories. Lacks the choline, vitamins, and fat of the whole egg.

Vitamins & Minerals — per 100g

NutrientAmount% Daily ValueBar
Riboflavin (B2)0.43mg33%
Selenium20.0µg36%
Potassium163mg3%
Sodium166mg7%
Magnesium11mg3%
Phosphorus15mg1%
Niacin (B3)0.11mg1%
Folate (B9)4µg1%
Calcium7mg1%
Vitamin B60.02mg1%

Calories in Egg White by Weight

WeightCaloriesProteinFatCarbs
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Macronutrient Breakdown — per 100g

Protein10.9g · 84% of calories
Fat0.17g · 3% of calories
Carbohydrates0.73g · 6% of calories

Egg white is 88% water. Near-zero fat and very low carbs. Raw egg white contains avidin which blocks biotin absorption — cooking denatures avidin and resolves this. Cooked egg white protein is 91% digestible.

Micronutrient Highlights

💪
Protein
10.9g
22% DV
Complete — all essential amino acids
🔬
Riboflavin (B2)
0.43mg
33% DV
Energy metabolism and antioxidant defence
Potassium
163mg
3% DV
Blood pressure support
🧠
Selenium
20.0µg
36% DV
Antioxidant and thyroid function
🦴
Phosphorus
15mg
1% DV
Bone health
💧
Water
88%
Hydration
Lowest calorie protein food

Egg White Benefits

Purest Protein Food Available

Egg white provides 10.9g of protein at only 52 kcal per 100g — a protein-to-calorie ratio of 0.84, with 84% of total calories from protein. One large egg white delivers 3.6g of complete protein at only 17 calories. For athletes or dieters seeking maximum protein with minimum calories, egg white is effectively unbeatable among whole foods.

Albumin — Unique Protein Properties

Egg white protein is primarily ovalbumin, ovotransferrin, and ovomucin — albumin proteins with unique functional properties. Ovalbumin is the reference protein for measuring other proteins' nutritional value. These proteins form a stable foam when beaten, creating unique culinary applications. Ovotransferrin has antimicrobial properties by binding to iron that bacteria need to grow.

Weight Loss Applications

The combination of high protein (84% of calories) and very low total calories makes egg whites exceptional for calorie-restricted diets. Adding two egg whites to a meal adds only 34 calories while providing 7.2g of protein — significantly increasing the protein-to-calorie ratio of the overall meal and improving satiety without adding meaningful calories.

Biotin Consideration

Raw egg white contains avidin — a protein that binds biotin (vitamin B7) with extraordinarily high affinity, blocking its absorption. Eating raw egg whites daily can cause biotin deficiency over time. Cooking completely denatures avidin, eliminating this concern. All culinary applications involving cooked egg white are safe; raw egg white consumption in very large quantities warrants caution.

Is Egg White Suitable for Your Diet?

Weight loss
Best low-cal protein food
Keto
Yes — near zero carbs
Paleo
Yes
Gluten-free
Yes
Diabetic
Yes
High protein
84% calories from protein
Vegan
No
⚠️
Vegetarian
Yes — lacto-ovo

Frequently Asked Questions

How many calories in an egg white?
One large egg white (33g) has 17 calories. Per 100g: 52 calories. Two egg whites: 34 calories with 7.2g protein.
Is egg white better than whole egg?
Depends on goal. Egg white has fewer calories and fat. Whole egg has more vitamins, choline, and healthy fats. For pure protein with minimum calories: egg white. For overall nutrition: whole egg.
How much protein in egg white?
10.9g per 100g. One large egg white: 3.6g. Two egg whites: 7.2g — comparable to many protein supplements.
Is raw egg white safe to eat?
Raw egg white contains avidin which blocks biotin absorption, and carries salmonella risk. Cooking denatures avidin and kills bacteria. Cooked egg white is safer and has higher protein bioavailability (91% cooked vs 51% raw).
Is egg white keto?
Yes — 0.73g carbs per 100g. Very low calorie and virtually carb-free.
Can you eat only egg whites for weight loss?
Egg whites are very effective for weight loss — low calorie, high protein. However, whole eggs provide essential nutrients (choline, B12, vitamin D) that egg whites lack. A combination of whole eggs and egg whites is optimal.

Nutrition values from USDA FoodData Central. Not medical advice.