A single large egg contains about 5 grams of total fat, and nearly all of it is in the yolk. The egg white is almost entirely protein and water, with virtually no fat at all. That 5-gram total puts eggs in a moderate range, comparable to a tablespoon of hummus or a small handful of almonds.
Fat Breakdown by Type
Not all fat in an egg is the same, and the mix is more balanced than most people expect. Of the roughly 5 grams in a large egg, about 1.5 grams are saturated fat, 1.7 grams are monounsaturated fat (the same kind found in olive oil), and the remaining 0.8 grams are polyunsaturated fat, which includes small amounts of omega-3 and omega-6 fatty acids. So roughly two-thirds of the fat in an egg is unsaturated.
One large egg also contains about 186 milligrams of cholesterol, all concentrated in the yolk. For years, dietary guidelines treated egg cholesterol as a major concern, but current evidence has shifted that thinking. For most people, the cholesterol you eat has a smaller effect on blood cholesterol levels than saturated fat does, and eggs are relatively low in saturated fat.
Why the Yolk Has All the Fat
The yolk exists to nourish a developing chick, so it’s packed with energy-dense nutrients. It provides about three-fourths of an egg’s calories, all of the fat-soluble vitamins (A, D, E, and K), and all of the choline, lutein, and zeaxanthin. The fat in the yolk isn’t just stored energy. It actually helps your body absorb those vitamins, since vitamins A, D, E, and K need fat to be taken up efficiently. Research suggests these nutrients may be more bioavailable from egg yolk than from other, richer food sources.
Egg whites, by contrast, are about 90% water and 10% protein. If you’re eating egg whites only, you’re getting close to zero fat per serving, but you’re also missing most of the egg’s micronutrients.
How Egg Size Changes the Numbers
The 5-gram figure applies to a large egg, which weighs about 63 grams in the shell. Sizes scale roughly as you’d expect:
- Medium egg: about 4 grams of fat
- Large egg: about 5 grams of fat
- Extra-large egg: about 5.5 grams of fat
- Jumbo egg: about 6 grams of fat
These differences are small enough that switching egg sizes won’t meaningfully change your daily fat intake unless you’re eating several at a time.
Omega-3 Enriched Eggs
Eggs labeled “omega-3 enriched” come from hens fed a diet supplemented with sources like flaxseed or fish oil. The total fat stays about the same (around 5 grams), but a larger share of it comes from omega-3 fatty acids, particularly DHA, which supports brain and heart health. A standard egg contains only trace amounts of DHA, while enriched eggs can deliver roughly 100 to 200 milligrams per egg depending on the brand and feed formulation. That’s a meaningful bump, though still well below the 250 to 500 milligrams of combined EPA and DHA that most nutrition guidelines recommend daily.
How Cooking Affects Fat Content
The fat already in an egg doesn’t change much with heat, but what you cook it in makes a real difference. A boiled or poached egg stays at 5 grams. Frying an egg in a tablespoon of butter adds about 12 grams of fat, more than tripling the total. A tablespoon of olive oil adds 14 grams. Scrambled eggs often include butter or cream in the pan, which can push a two-egg serving well above 15 grams of fat.
If you’re tracking fat intake closely, cooking method matters more than any variation between egg types or sizes. A soft-boiled egg and a fried egg start with the same 5 grams, but they can end up in very different places on your plate.