For most healthy adults, one egg a day is fine. A 2020 BMJ analysis of 215,618 people followed for up to 32 years, plus a meta-analysis of 1.72 million participants, found no link between an egg a day and cardiovascular disease. A large egg has about 72 kcal, 6.3 g of protein and 186 mg of cholesterol, per USDA data.
Key takeaways
- A large egg (50 g) has about 72 kcal, 6.3 g of protein and 4.8 g of fat, per USDA.
- Up to one egg a day was not linked with heart disease in a 2020 BMJ meta-analysis of 1.72 million people.
- People with heart disease, diabetes or high LDL should agree their number with a doctor.
- What you cook eggs with, such as sucuk or butter, often matters more than the eggs.
- Avoid raw eggs and cook them thoroughly.
What is in one egg?
A large egg (50 g without the shell) is small in calories and dense in nutrients. These values come from USDA FoodData Central:
| Per large egg (50 g) | Whole egg | White (33 g) | Yolk (17 g) |
|---|---|---|---|
| Energy | 72 kcal | 17 kcal | 55 kcal |
| Protein | 6.3 g | 3.6 g | 2.7 g |
| Fat | 4.8 g | 0.1 g | 4.5 g |
| Saturated fat | 1.6 g | 0 g | 1.6 g |
| Cholesterol | 186 mg | 0 mg | 184 mg |
| Choline | 147 mg | <1 mg | 139 mg |
| Vitamin D | 1.0 µg | 0 µg | 0.9 µg |
Egg size changes the numbers: a medium egg (44 g) has about 63 kcal and 5.5 g of protein, an extra-large egg (56 g) about 80 kcal and 7.1 g. A hard-boiled large egg is about 78 kcal; boiling does not add calories, the slightly different figure reflects USDA's separate analysis of cooked eggs. Frying is where calories climb, because of the oil or butter.
Notice where the nutrients sit. The white carries more than half of the protein with almost no fat. The yolk holds almost all of the fat, cholesterol, choline and vitamin D. Eating the whole egg gives you both.
Do eggs raise your heart disease risk?
For most healthy people, current evidence says moderate egg eating is not linked with higher cardiovascular risk. The key study is a 2020 analysis in The BMJ that followed 215,618 US nurses and health professionals for up to 32 years and then updated a meta-analysis of prospective cohorts:
- In the US cohorts, eating at least one egg a day was not associated with cardiovascular disease after adjusting for lifestyle and the rest of the diet (hazard ratio 0.93 versus less than one egg a month).
- In the meta-analysis of 33 risk estimates covering 1.72 million participants, each extra egg per day was not associated with cardiovascular disease, coronary heart disease or stroke.
- In Asian cohorts, egg eating was even linked with slightly lower risk, which the authors said should be interpreted cautiously.
The American Heart Association's 2020 science advisory on dietary cholesterol reached a balanced conclusion. Observational studies in several countries generally do not show a significant link between dietary cholesterol and cardiovascular disease, but most intervention studies find that cholesterol intakes above current averages raise total and LDL cholesterol. Its advice is to focus on healthy eating patterns, such as Mediterranean or DASH-style diets, rather than a single cholesterol number.
So how many eggs a day is OK?
| Who | What guidance and evidence suggest |
|---|---|
| Healthy adults | Up to 1 egg a day is not linked with higher heart risk (BMJ 2020). Türkiye's TÜBER says healthy people can eat one whole egg a day. |
| Children | TÜBER notes that one egg a day is beneficial because of its high-quality protein. |
| People with heart disease | TÜBER suggests a whole egg only a few times a week (it mentions 1–3 times). |
| High LDL, diabetes or familial high cholesterol | Ask your doctor or a registered dietitian; individual advice matters here. |
The new Dietary Guidelines for Americans 2025–2030, released in January 2026, list eggs among the protein foods to prioritise and set no specific egg limit. They do keep a cap of 10% of daily calories from saturated fat. Two eggs provide about 3.2 g of saturated fat, which fits easily within that cap; what you cook them with often matters more.
Is it the egg or what comes with it?
Many egg dishes owe most of their calories to the extras. Compare Sporty's per-serving estimates for popular egg dishes (real values depend on recipe and portion):
| Dish | kcal | Protein | Fat |
|---|---|---|---|
| Spinach omelette | 300 | 21 g | 21 g |
| Vegetable omelette | 320 | 22 g | 21 g |
| Frittata | 340 | 22 g | 23 g |
| Çılbır (poached eggs with yogurt) | 380 | 20 g | 30 g |
| Avocado toast with poached eggs | 410 | 22 g | 20 g |
| Eggs with sucuk | 450 | 24 g | 38 g |
| Menemen with white cheese | 460 | 28 g | 28 g |
Eggs cooked with vegetables land around 300–340 kcal. Adding processed meat such as sucuk, or a lot of butter, pushes fat and saturated fat up much more than the eggs themselves. TÜBER also notes that eating eggs together with vegetables and whole grains reduces their effect on blood cholesterol.
Are eggs good for weight loss?
Eggs are a convenient way to add protein for few calories. Two large eggs give about 12.6 g of protein for 144 kcal. If you want more protein without much more energy, adding two egg whites brings it to about 19.8 g for 178 kcal. A protein-rich breakfast can help you feel full, though no single food causes weight loss; your overall calorie balance does.
The 2025–2030 US guidelines suggest 1.2–1.6 g of protein per kg of body weight a day, adjusted to your calorie needs, which is higher than the classic adult minimum of 0.8 g/kg. For a 70 kg adult, 1.2 g/kg is 84 g a day, so two eggs cover about 15%. See how much protein you need per day and our high-protein breakfast ideas for ways to build the rest. You can log a plate of eggs in Sporty from a photo; remember to include the cooking oil.
Which nutrients make eggs special?
- High-quality protein. TÜBER describes egg protein quality as high and calls eggs an important protein source when protein must be restricted, for example in some kidney or liver diseases.
- Choline. One large egg gives about 147 mg. The US guidelines name choline-rich eggs among the foods to eat during pregnancy.
- Vitamin D. Few foods contain it naturally; one egg has about 1 µg, mostly in the yolk.
- Versatility and price. Eggs work at breakfast, lunch and dinner in almost every cuisine, from Turkish menemen to an Italian frittata or a French omelette.
How should you cook and store eggs safely?
TÜBER advises against eating raw eggs: they are harder to digest, raw egg white prevents the vitamin biotin from working in the body, and they carry a food-safety risk. Cook eggs thoroughly, and ask your doctor about runny yolks if you are pregnant or have weakened immunity. Boiling, poaching or cooking with a teaspoon of oil keeps the calories close to the egg itself.
The bottom line: for most healthy adults, an egg a day fits well in a balanced diet. If you have a heart condition, diabetes or high cholesterol, decide your number together with your doctor or dietitian.
Frequently asked questions
How many calories are in one egg?
A large egg (50 g) has about 72 kcal, a medium egg about 63 kcal and an extra-large egg about 80 kcal, per USDA data. Cooking in oil or butter adds more.
How much protein is in an egg?
About 6.3 g in a large egg, with 3.6 g in the white and 2.7 g in the yolk. Two eggs give about 12.6 g of protein for 144 kcal.
Is it safe to eat eggs every day?
For most healthy adults, yes. A 2020 BMJ analysis found up to one egg a day was not associated with cardiovascular disease, and Türkiye's TÜBER says healthy people can eat one whole egg daily.
Does egg cholesterol raise blood cholesterol?
Observational studies generally show no clear link with heart disease, but trials find high cholesterol intakes can raise LDL in some people. The AHA advises focusing on your overall eating pattern.
Are egg whites healthier than whole eggs?
Whites give protein with almost no fat, but the yolk holds choline, vitamin D and most other nutrients. Mixing whole eggs with extra whites is a practical middle ground.
Sources
- USDA FoodData Central (egg, whole, raw; egg white; egg yolk)
- Drouin-Chartier et al. 2020, Egg consumption and risk of cardiovascular disease (BMJ)
- Carson et al. 2020, Dietary cholesterol and cardiovascular risk: AHA science advisory (Circulation)
- Dietary Guidelines for Americans 2025–2030
- T.C. Sağlık Bakanlığı, Türkiye Beslenme Rehberi (TÜBER) 2022
This article is general information, not medical advice. If you have a health condition, are pregnant or under 18, talk to a doctor or registered dietitian before changing your diet.