A large raw egg contains about 6.3 grams of protein. That protein is split between the white and the yolk, and the split isn’t as lopsided as most people assume. If you’re drinking raw eggs for the protein, though, there’s a catch: your body absorbs significantly less protein from a raw egg than from a cooked one.
Protein in the White vs. the Yolk
Of those 6.3 grams in a large egg, roughly 3.6 grams come from the white and 2.7 grams come from the yolk. That means the yolk supplies about 43% of the egg’s total protein, not just fat and cholesterol as many people believe. Tossing the yolk costs you nearly half the protein.
The white weighs about 33 grams and is almost entirely water and protein. The yolk weighs around 17 grams and packs its protein alongside fat, vitamins A and D, choline, and most of the egg’s micronutrients. If you’re eating whole eggs for protein, you’re also getting a broad nutritional package from the yolk that the white alone can’t match.
How Egg Size Changes the Numbers
Egg size is standardized by weight, so protein scales predictably. A large egg (about 50 grams without the shell) has 6.3 grams of protein. Medium eggs weigh less and typically contain around 5.5 grams. Extra-large and jumbo eggs push closer to 7 or 8 grams. If you’re tracking protein intake closely, weigh your eggs or stick with a consistent size so the math stays simple.
Raw Eggs Deliver Less Usable Protein
Here’s the detail most people miss: protein digestion from raw eggs is around 40% lower than from cooked eggs. Heat changes the structure of egg proteins, unfolding them in a way that makes them far easier for your digestive enzymes to break down. When you drink a raw egg, a significant portion of that 6.3 grams passes through your system without being absorbed.
In practical terms, the roughly 6 grams of protein in a raw egg may deliver only about 3.5 to 4 grams of usable protein to your muscles and tissues. Cooking the egg (scrambled, boiled, poached, any method) brings that absorption rate up dramatically. If you’re eating eggs specifically for their protein value, cooking them is a straightforward way to get more from the same food.
Amino Acid Quality
Egg protein is often used as a reference standard for protein quality because it contains all nine essential amino acids in near-ideal proportions. The most abundant is leucine, the amino acid most directly involved in triggering muscle repair and growth. Eggs also supply strong amounts of lysine, valine, isoleucine, and phenylalanine. This complete amino acid profile is one reason eggs are considered a top-tier protein source, particularly for people building or maintaining muscle.
The Avidin Problem in Raw Whites
Raw egg whites contain a protein called avidin that binds to biotin (vitamin B7) with extraordinary strength, preventing your body from absorbing it. This bond is one of the tightest found in nature and resists digestion completely. Cooking denatures avidin and eliminates this effect.
The good news is that a single raw egg is unlikely to cause problems. The biotin already present in the yolk roughly offsets the avidin in the white, so eating an occasional raw whole egg won’t tip you into deficiency. The risk increases if you’re consuming large quantities of raw egg whites without the yolks over an extended period. Researchers have actually used dried raw egg white as a reliable method to induce biotin deficiency in laboratory settings, which gives you a sense of how effective avidin is at blocking absorption when the dose is high enough.
Putting It Together
One large raw egg gives you 6.3 grams of protein on paper, but your body only absorbs about 60% of it in raw form. Cooking that same egg lets you access nearly all of the protein with no loss in amino acid quality. If you prefer raw eggs in smoothies or shakes, you’re still getting protein, just less per egg than you might expect. Two raw eggs would deliver roughly the same usable protein as one cooked egg, give or take.