A single large chicken egg contains about 71 calories. Most of those calories come from the yolk, while the egg white contributes only about 17 calories. That makes eggs one of the most nutrient-dense foods you can eat for relatively few calories.
Calorie Breakdown by Part
The yolk and white of an egg are nutritionally very different. The white is almost pure protein, delivering 17 calories with virtually no fat. The yolk carries the remaining 54 calories, along with nearly all of the egg’s fat, vitamins, and minerals.
If you’re counting calories closely, eating only the whites cuts the total by about 75%. But you also lose most of the egg’s nutritional value in the process, including its fat-soluble vitamins and choline (a nutrient important for brain and liver function that most people don’t get enough of). A whole egg provides roughly 147 mg of choline, which is about a quarter of the daily recommended intake.
Protein, Fat, and Carbs in One Egg
A large egg has 6.3 grams of protein, 5.3 grams of fat (1.6 grams saturated), and less than 1 gram of carbohydrate. That ratio of protein to calories is hard to beat. For context, you’d need about 1.5 tablespoons of peanut butter to match the protein in one egg, but that comes with roughly twice the calories.
Cooking method matters more than people realize. Your body absorbs about 40% less protein from a raw egg than from a cooked one. So if you’re adding raw eggs to smoothies for protein, you’re getting significantly less than you think. Scrambled, boiled, poached, or fried all improve protein absorption dramatically.
Cooking method also changes the calorie count. A boiled or poached egg stays close to 71 calories because no fat is added. Frying an egg in a tablespoon of butter adds roughly 100 calories. A scrambled egg made with milk and butter can land between 90 and 120 calories depending on how generous you are with the extras.
How Egg Size Affects Calories
The 71-calorie figure is based on a large egg, which weighs about 50 grams. Here’s how other sizes compare:
- Medium egg (44g): roughly 63 calories
- Large egg (50g): 71 calories
- Extra-large egg (56g): roughly 80 calories
- Jumbo egg (63g): roughly 90 calories
The differences are modest, but they add up if you’re eating three or four eggs at a time.
Duck and Quail Eggs
Not all eggs are chicken eggs. Duck eggs are larger and richer, with more protein (about 15 grams per 100g compared to 13 grams for chicken eggs) and a similar fat content. A single duck egg, which weighs around 70 grams, runs about 130 calories. Quail eggs sit at the other end of the size spectrum. Each tiny egg weighs roughly 9 grams and contains about 14 calories, so you’d need five of them to match one chicken egg.
Omega-3 and Specialty Eggs
Omega-3 enriched eggs come from hens fed flaxseed, algae, or fish oils. A standard egg contains about 30 mg of omega-3 fatty acids, while enriched versions can contain 100 to 600 mg. The calorie count stays essentially the same, around 70 to 75 per egg. Free-range and organic eggs also have a similar calorie profile to conventional eggs. The differences between these varieties show up in micronutrient content and fatty acid ratios, not in total calories.
Eggs, Cholesterol, and How Many to Eat
One large egg contains about 186 mg of cholesterol, all of it in the yolk. For years, dietary guidelines placed strict limits on cholesterol intake, which gave eggs a bad reputation. The American Heart Association’s most recent dietary guidance no longer treats dietary cholesterol as a primary concern for heart disease risk in most people. Moderate egg consumption fits within a heart-healthy eating pattern.
What does “moderate” look like in practice? Most research supports one to three eggs per day for healthy adults without raising cardiovascular risk. The bigger concern, according to the AHA, is what you eat alongside eggs. Pairing them with bacon, sausage, and buttered toast creates a very different meal than pairing them with vegetables and whole grains.
Why Eggs Keep You Full
Eggs rank high for satiety relative to their calorie count. Research from Texas Tech University found that an egg breakfast produced significantly greater feelings of fullness compared to a cereal breakfast with the same number of calories. The high-quality protein in eggs is the likely driver. This makes eggs a practical choice if you’re trying to manage your weight: 140 calories from two eggs will carry you further through the morning than 140 calories from a bowl of cereal or a slice of toast with jam.