How Many Calories in an Egg? Complete Nutrition Breakdown

The Short Answer

A single large egg (approximately 50 grams) contains about 72 calories. But that headline number tells only a fraction of the story. How you cook your egg, whether you eat the yolk, how many you eat, and what you pair them with can shift the nutritional reality dramatically. Eggs are also among the most nutrient-dense foods available, packing an impressive range of vitamins, minerals, and high-quality protein into a small, affordable package.

Understanding egg nutrition in full helps you use them strategically, whether your goal is weight loss, muscle building, or simply eating well.

How Cooking Changes the Calorie Count

The calorie content of an egg depends significantly on what you add during cooking. The egg itself does not gain or lose significant calories when heated, but the oil, butter, cheese, or milk you cook it with absolutely changes the equation.

A boiled egg retains its natural 72 calories because nothing is added. This is the purest representation of egg nutrition and the lowest calorie preparation method. Hard-boiled and soft-boiled eggs have identical calorie counts; the only difference is the texture of the yolk.

A poached egg is similarly clean at about 72 calories, since the egg is cooked in water without added fat. Poaching produces a tender, delicate texture that many people prefer over boiling.

Scrambled eggs jump to approximately 91 calories per egg when prepared with a small amount of butter. Most people add 1-2 teaspoons of butter or oil per serving, plus often a splash of milk or cream, which can push a two-egg scramble to 200-250 calories. If you add cheese, the calorie count climbs further. Scrambling eggs with a non-stick pan and minimal fat keeps them closer to their boiled baseline.

A fried egg ranges from 90 to 130 calories depending on how much oil or butter is used. A thin coating of cooking spray keeps it near 90, while a generous pour of oil or butter can push past 130. Sunny-side-up and over-easy eggs cooked in a well-seasoned cast iron pan with minimal fat are a good middle ground.

An omelette with vegetables and cheese can range from 200 to 400+ calories depending on size and fillings, but the added vegetables and protein make it a nutritionally dense, satisfying meal.

Full Nutritional Profile

Per 100g of whole raw egg (roughly two large eggs), the complete nutritional profile is approximately 143 calories, 12.6g of protein, 9.5g of total fat (3.1g saturated, 3.7g monounsaturated, 1.9g polyunsaturated), 0.7g of carbohydrates, 372mg of cholesterol, 142mg of sodium, and 126mg of potassium.

Beyond the macronutrients, eggs provide an impressive micronutrient portfolio. They are one of the few food sources of vitamin D (about 2.1 micrograms per 100g). They provide vitamin B12 (essential for nerve function and energy), riboflavin (B2), pantothenic acid (B5), vitamin A, selenium (a powerful antioxidant), phosphorus, and notably high levels of choline, a nutrient critical for brain function, liver health, and fetal development during pregnancy. Most people do not consume enough choline, and eggs are one of the richest dietary sources.

The protein in eggs has a biological value of 100, the highest score possible. This means your body can absorb and utilize virtually all of the protein in eggs, more efficiently than chicken, beef, fish, or any plant protein. The amino acid profile of egg protein is so complete and well-balanced that it is used as the reference standard against which all other proteins are measured.

Egg White vs Whole Egg

The egg white versus whole egg debate has persisted for decades, driven primarily by concerns about cholesterol in the yolk. Here is the breakdown.

One large egg white contains approximately 17 calories, 3.6g of protein, 0.06g of fat, and essentially zero cholesterol. It is almost pure protein with negligible fat and no micronutrients to speak of beyond some riboflavin and selenium.

One large egg yolk contains approximately 55 calories, 2.7g of protein, 4.5g of fat, and 186mg of cholesterol. But the yolk is also where virtually all of the egg's micronutrients reside: all the vitamin D, vitamin A, vitamin E, vitamin B12, choline, iron, zinc, and omega-3 fatty acids. Discarding the yolk eliminates about 75% of the egg's total nutritional value to save 55 calories.

For most people, eating whole eggs is the substantially better choice. The additional 55 calories from the yolk are accompanied by nutrients that would cost hundreds of calories to obtain from other sources. The only scenario where egg whites make practical sense is for people on very strict calorie limits who are already getting adequate micronutrients from other sources and simply need lean protein.

Scaling Up: 2 Eggs, 3 Eggs, and Beyond

Two large boiled eggs provide about 144 calories and 12.6g of protein. Three eggs give you roughly 216 calories and 18.9g of protein. A three-egg breakfast with a slice of whole wheat toast and some avocado provides approximately 400 calories and 25+ grams of protein, which is an excellent foundation for a weight loss or muscle-building day.

For people focused on muscle building or eating in a calorie surplus, 4-5 eggs in a meal is perfectly reasonable and provides 25-30g of high-quality protein at a very low cost per gram of protein.

The Cholesterol Question, Settled

Eggs contain about 186mg of cholesterol per large egg, concentrated entirely in the yolk. For decades, this made eggs one of the most controversial foods in nutrition. Dietary guidelines limited egg consumption to 3-4 per week, and many health-conscious people avoided yolks entirely.

The scientific consensus has shifted substantially. Large-scale studies and meta-analyses have consistently shown that dietary cholesterol from eggs has a minimal effect on blood cholesterol levels for the majority of people. Your liver produces 800-1,000mg of cholesterol daily and actively adjusts its production based on dietary intake. When you eat more cholesterol, your liver produces less. When you eat less, it produces more. For roughly 70% of the population, this regulation is efficient enough that egg consumption does not meaningfully alter blood cholesterol.

The remaining 30%, sometimes called "hyper-responders," may see modest increases in both LDL and HDL cholesterol with high egg intake, but the LDL increase tends to be in the large, buoyant LDL particle subtype that is associated with lower cardiovascular risk rather than the small, dense subtype that is more concerning.

The American Heart Association no longer sets a specific daily limit on dietary cholesterol. Current guidelines focus on limiting saturated and trans fat intake rather than cholesterol itself. For most healthy adults, eating 1-3 whole eggs daily is considered safe and nutritious.

If you have been diagnosed with familial hypercholesterolemia or existing cardiovascular disease, discuss your individual egg intake with your doctor.

Are Eggs Good for Weight Loss?

Eggs are one of the most effective foods for weight loss, and the evidence goes beyond their favourable calorie-to-protein ratio. Research has consistently shown that eating eggs for breakfast leads to reduced calorie intake for the remainder of the day compared to eating a carbohydrate-heavy breakfast of equal calories like a bagel, cereal, or toast.

One study found that participants who ate an egg breakfast consumed 330 fewer calories over the next 24 hours compared to those who ate a bagel breakfast, despite both breakfasts containing the same number of calories. The combination of high protein, healthy fats, and micronutrients in eggs creates a satiety response that refined carbohydrates simply cannot match.

Eggs also score high on the satiety index, a measure of how full a food makes you feel relative to its calorie content. They rate approximately 50% higher than white bread on this scale.

For anyone in a calorie deficit for weight loss, eggs are a near-perfect food: high protein, moderate calories, deeply satiating, affordable, and fast to prepare. Check out our full list of high protein foods for more options alongside eggs.

Use our food search tool to look up exact nutritional values for any egg preparation, or compare eggs to other protein sources to see how they stack up.

All nutritional values sourced from the USDA FoodData Central database.