Egg Protein per 100g: Whole Egg vs Egg White Compared

Eggs are one of the most efficient protein sources available, but the difference between whole eggs and egg whites matters more than most people realize when building a diet around a specific calorie or fat target.

Egg Nutrition (Per 100g)

Type	Protein	Calories	Fat
Whole egg	~13g	~155 kcal	~11g
Egg white only	~11g	~52 kcal	~0.2g
Egg yolk only	~16g	~322 kcal	~27g

Per-Egg Breakdown (More Practical for Meal Planning)

A single large whole egg (~50g) provides roughly 6-6.5g of protein and 70-78 calories. A single large egg white (~33g) provides roughly 3.5-4g of protein for just 17 calories — a very different calorie-to-protein ratio.

Whole Egg vs Egg White: Which Should You Eat?

Egg whites offer nearly the same protein as a whole egg for a fraction of the calories, making them useful if you're managing a tight calorie deficit and want to maximize protein without spending calories on fat. Whole eggs, however, contain the yolk's nutrients — vitamin D, choline, and other micronutrients — that egg whites don't provide, along with healthy fats that support hormone production.

A Practical Middle Ground

Many people use a mix — for example, 2 whole eggs plus 2-3 additional egg whites — to get a meaningful protein hit (roughly 25-27g) while keeping fat and calories more moderate than an all-whole-egg approach, without discarding the yolk's nutritional value entirely.

Are Egg Whites "Healthier" Than Whole Eggs?

Not inherently — whole eggs are a nutritionally complete food, and the cholesterol concerns once associated with egg yolks have been substantially revised by more recent research showing limited impact on blood cholesterol for most people. The choice between whole eggs and whites should come down to your calorie and fat targets, not an assumption that whites are automatically the "healthy" option.

The Bottom Line

Egg whites are the more calorie-efficient protein source; whole eggs are the more nutritionally complete one. For most people without a specific medical restriction, a combination of both across the day is a reasonable, flexible approach.

Log whole eggs and egg whites separately in Calibrate for the most accurate daily protein and fat tracking.