A large egg contains about 6.3 grams of protein. That’s the standard reference point, since “large” is the default size sold in most grocery stores and the size used in nearly all nutrition labels and recipes. Two eggs at breakfast give you roughly 12.6 grams, and a three-egg omelet lands around 19 grams.
Protein by Egg Size
Not all eggs weigh the same, and protein scales with size. A large egg weighs a minimum of 56.8 grams, but sizes range from peewee (35.4 grams) up to jumbo (70.9 grams). Since egg protein runs about 11% of total egg weight, you can estimate protein for any size:
- Medium egg (49.6 g minimum): roughly 5.4 grams of protein
- Large egg (56.8 g): 6.3 grams
- Extra-large egg (63.8 g): roughly 7 grams
- Jumbo egg (70.9 g): roughly 7.8 grams
If you buy jumbo eggs instead of large, swapping in three eggs gives you nearly 24 grams of protein, almost four grams more than the same number of large eggs.
How Protein Splits Between White and Yolk
The white and yolk each carry a meaningful share of the total protein, which surprises people who assume it’s all in one or the other. In a large egg, the white contributes about 3.6 grams and the yolk supplies the remaining 2.7 grams. That means tossing the yolk throws away more than 40% of the egg’s protein, along with most of its vitamins and healthy fats.
Egg whites are popular because they deliver protein with very few calories: just 17 calories per white compared to 71 for the whole egg. If your only goal is maximizing protein per calorie, whites win. But if you’re eating eggs for overall nutrition, whole eggs are the more efficient choice.
Why Egg Protein Is Considered High Quality
Protein quality depends on which amino acids a food provides, especially the nine essential amino acids your body can’t produce on its own. Eggs deliver all nine in meaningful amounts. A single large egg contains 0.57 grams of leucine (the amino acid most important for triggering muscle building), 0.45 grams of lysine, 0.43 grams of valine, and 0.36 grams of isoleucine, among others.
This complete amino acid profile is why eggs have long been used as the reference standard for measuring protein quality in other foods. The balance of amino acids in eggs closely matches what your muscles need for repair and growth, so your body uses a very high percentage of the protein you eat rather than discarding it as waste.
Eggs Compared to Other Protein Sources
At 6.3 grams per egg, you need to eat a few to match a serving of meat or fish. A palm-sized portion of chicken breast (about 100 grams) delivers roughly 31 grams of protein. Greek yogurt provides around 15 grams per cup. A cup of cooked lentils offers about 18 grams. Eggs aren’t the most protein-dense food by volume, but they’re one of the cheapest and most versatile.
Where eggs stand out is satiety. On the Satiety Index, which measures how full a food keeps you relative to its calorie content, eggs score 150 out of a baseline of 100. That puts them ahead of cheese (146) and lentils (133), though behind fish (225) and beef (176). For the calories they contain, eggs keep hunger at bay longer than many alternatives.
How to Hit Protein Targets With Eggs
Most adults need somewhere between 50 and 100 grams of protein per day, depending on body weight and activity level. A common recommendation is 0.36 grams per pound of body weight for sedentary adults, and up to 0.7 grams per pound for people who exercise regularly or are trying to build muscle.
Three large eggs at breakfast (about 19 grams) covers roughly a quarter to a third of the daily target for most people. Pairing eggs with other protein sources throughout the day fills the gap easily. A two-egg lunch scramble with a side of beans or cheese, for example, adds another 20 or more grams without much effort.
Cooking method doesn’t change the protein content. Scrambled, poached, hard-boiled, or fried, a large egg still delivers 6.3 grams. What changes is the calorie count: frying in butter or oil adds fat calories, while boiling or poaching keeps the total closer to the egg’s baseline 71 calories.