A large chicken egg contains about 5 grams of total fat. That’s roughly 7% of a typical daily fat intake, making eggs a moderate-fat food rather than a high-fat one. Most of that fat is concentrated entirely in the yolk.
Fat Content by Egg Size
Egg size makes a noticeable difference. A small egg (about 48 grams) has 3.7 grams of fat, while a very large egg (78 grams) has 6.2 grams. Here’s how the sizes compare:
- Small (48g): 3.7g fat
- Medium (58g): 4.6g fat
- Large (68g): 5.4g fat
- Very large/jumbo (78g): 6.2g fat
When nutrition labels and recipes reference “one egg,” they almost always mean a large egg.
What Kind of Fat Is in an Egg
Not all fat is the same, and the breakdown in an egg yolk is more favorable than many people expect. About 42% of the fat is monounsaturated, the same type found in olive oil and avocados. Another 14% is polyunsaturated fat, which includes omega-3 and omega-6 fatty acids. The remaining 34% is saturated fat, with roughly 1.6 grams of saturated fat per large egg.
So while eggs do contain some saturated fat, the majority of their fat is unsaturated. This is one reason nutrition guidelines have softened on eggs over the past decade.
Yolk vs. White
Virtually all of the fat in an egg lives in the yolk. A single yolk contains about 4.9 grams of fat, while the white has less than 0.08 grams. If you eat only egg whites, you’re getting almost zero fat (and zero cholesterol), but you’re also missing the vitamins, choline, and healthy fats that make eggs nutritious in the first place.
Cholesterol in Context
One large egg contains about 186 milligrams of dietary cholesterol, all of it in the yolk. For years, this made eggs a target for heart health warnings. Current guidance from the American Heart Association takes a different view: dietary cholesterol is no longer a primary target for heart disease risk reduction for most people. Moderate egg consumption can be part of a heart-healthy diet, especially when eggs replace less nutritious protein sources like processed meat.
The cholesterol number hasn’t changed, but the science around it has. Your body adjusts its own cholesterol production in response to what you eat, so dietary cholesterol has a smaller effect on blood cholesterol than previously thought.
How Cooking Changes the Fat
The fat inside the egg stays roughly the same no matter how you cook it. A poached egg and a hard-boiled egg both have about 5 grams of fat. What changes the total is what you cook it in. Frying an egg in a tablespoon of butter adds about 12 grams of fat. Scrambling eggs with butter or oil adds a similar amount. If you’re tracking fat intake, poaching and boiling are the lowest-fat cooking methods because they don’t introduce any additional fat.
Omega-3 and Free-Range Eggs
Specialty eggs can shift the fat profile. Omega-3 enriched eggs come from hens fed flaxseed, algae, or fish oils, which boosts omega-3 content from about 30 milligrams per egg to between 100 and 600 milligrams. The total fat stays similar, but a larger share of it is the anti-inflammatory polyunsaturated kind.
Free-range and pasture-raised eggs also differ. Hens that forage on grass and insects produce eggs with roughly three times more unsaturated fat compared to standard commercial eggs. The total grams of fat per egg don’t change dramatically, but the ratio of healthy to less-healthy fats improves.
Duck and Quail Eggs
If you’re comparing across species, chicken, duck, and quail eggs are surprisingly similar in fat density. Per 100 grams, chicken eggs contain about 13.2 grams of fat, duck eggs about 13.5 grams, and quail eggs about 13.2 grams. The difference is mostly in egg size: a single duck egg is larger than a chicken egg, so it delivers more total fat per egg, while a tiny quail egg delivers less.