A large egg contains about 6.3 grams of protein. That makes eggs one of the most protein-dense everyday foods per calorie, packing roughly 13 grams of protein for every 100 grams of egg. The exact amount shifts depending on egg size, which part you eat, and how you cook it.
Protein by Egg Size
Egg sizes are standardized by weight, so the protein content scales predictably:
- Small (38 g): 4.79 grams of protein
- Medium (44 g): 5.54 grams of protein
- Large (50 g): 6.3 grams of protein
- Extra large (56 g): 7.06 grams of protein
- Jumbo (63 g): 7.94 grams of protein
Most nutrition labels and recipes assume a large egg. If you buy jumbo eggs, you’re getting about 25% more protein per egg than the standard large. That difference adds up quickly in a three-egg breakfast.
Yolk vs. White: Where the Protein Lives
A common assumption is that all the protein is in the white. It’s not. Egg whites contain about 10.8 grams of protein per 100 grams, while yolks actually have a higher concentration at 16.4 grams per 100 grams. The white wins on total protein per egg only because it makes up a larger share of the egg’s volume.
In a single large egg, roughly 3.6 grams of protein come from the white and 2.7 grams from the yolk. If you’re tossing yolks to “save protein,” you’re actually losing about 40% of the egg’s protein along with nearly all of its vitamins A, D, E, and B12. The yolk also carries all the fat and cholesterol, which is the real reason some people skip it, but for pure protein math, keeping the whole egg is the better deal.
Cooking Changes How Much Protein You Actually Absorb
Raw eggs are not equivalent to cooked eggs when it comes to protein. Your body digests about 40% less protein from a raw egg compared to a cooked one. Heat changes the structure of egg proteins, unfolding them in a way that makes them far easier for your digestive enzymes to break apart.
This means a raw egg with 6.3 grams of protein on paper delivers noticeably less usable protein to your muscles than a scrambled, boiled, or poached version of the same egg. If you’re adding raw eggs to smoothies for the protein boost, cooking them first and blending them in would be significantly more effective. The preparation method (scrambled, fried, hard-boiled) doesn’t meaningfully change the protein content itself, though frying in butter or oil adds calories from fat.
How Eggs Compare to Other Protein Sources
For context, here’s how a large egg stacks up against other common protein foods per serving:
- 1 large egg: 6.3 g protein, ~70 calories
- 1 cup of milk: ~8 g protein, ~150 calories
- 1 oz chicken breast: ~9 g protein, ~46 calories
- 1 oz Greek yogurt: ~3 g protein, ~17 calories
Eggs aren’t the highest-protein food per gram, but their protein-to-calorie ratio is excellent, and they’re a complete protein, meaning they contain all nine essential amino acids your body can’t make on its own. They’re also one of the cheapest sources of high-quality protein available.
Duck and Quail Eggs Have More Protein
If you’ve ever wondered about eggs beyond the standard chicken variety, duck and quail eggs are both higher in protein per gram. Chicken eggs average about 12.8 grams of protein per 100 grams, while duck eggs come in at 15.1 grams and quail eggs at 15.3 grams per 100 grams.
A single duck egg weighs roughly 70 grams, so it delivers around 9 grams of protein, noticeably more than a large chicken egg. Quail eggs are tiny (about 9 grams each), so you’d need five or six to match one chicken egg. They’re interesting nutritionally but not a practical protein swap for most people.
How Many Eggs Can You Eat?
The American Heart Association’s 2026 dietary guidance states that dietary cholesterol is no longer a primary target for heart disease risk reduction for most people. Moderate egg consumption fits within a heart-healthy eating pattern. The same guidance notes that replacing red and processed meat with alternatives like eggs, legumes, nuts, poultry, and dairy is associated with lower coronary heart disease risk.
For most healthy adults, one to three eggs per day is a reasonable range that aligns with current evidence. The bigger concern, nutritionally, is what you eat alongside eggs. A breakfast of eggs with vegetables is a very different meal from eggs with bacon and buttered toast. The eggs themselves are not the weak link in that equation.
Quick Math for Protein Goals
If you’re tracking protein to hit a daily target, eggs make the arithmetic simple. Two large eggs give you about 12.6 grams of protein for roughly 140 calories. Three eggs get you close to 19 grams. For someone aiming for 100 grams of protein per day, a three-egg breakfast covers nearly a fifth of that goal before you leave the kitchen.
Pairing eggs with other protein sources at the same meal, like a slice of cheese (5-7 g) or a glass of milk (8 g), can push a single breakfast past 30 grams of protein. That threshold matters because research on muscle protein synthesis suggests your body uses protein most efficiently when you spread intake across meals in roughly 25-to-40-gram portions rather than loading it all into dinner.