One large egg has 72 calories and 6g of protein. That makes it one of the cheapest, most efficient protein sources you can eat — and a weight loss staple for good reason.
Here's the full breakdown by cooking method, plus how many eggs you can actually eat per day without wrecking your calorie budget.
Egg Calories by Cooking Method
How you cook an egg changes its calories more than most people realize.
| Cooking Method | Calories (1 egg) | Protein | Fat |
|---|---|---|---|
| Raw / Poached | 72 cal | 6.3g | 4.8g |
| Hard-boiled | 78 cal | 6.3g | 5.3g |
| Scrambled (cooking spray) | 72 cal | 6.3g | 4.8g |
| Scrambled (with butter) | 108 cal | 6.3g | 8.8g |
| Fried in oil | 98 cal | 6.8g | 7.4g |
Values per 1 large egg (50g). Source: USDA FoodData Central.
The egg itself is always 72 calories. The difference comes from what you cook it in. An oil sprayer or cooking spray keeps scrambled eggs at 72 cal. A tablespoon of butter adds 102 cal — suddenly your 2-egg breakfast went from 144 to 348 calories.
Whole Eggs vs Egg Whites
| Whole Egg | Egg White Only | |
|---|---|---|
| Calories | 72 cal | 17 cal |
| Protein | 6.3g | 3.6g |
| Fat | 4.8g | 0.1g |
Egg whites are 76% fewer calories — but you also lose half the protein and all the nutrients (vitamins A, D, B12, choline are in the yolk). For most people, whole eggs are the better deal. If you're on a very strict budget like our 1,200-calorie plan, mixing 1 whole egg + 2 whites gives you high protein at low calories (106 cal, 13.5g protein).
How Many Eggs Can You Eat Per Day?
From a calorie perspective, it depends on your target:
- 1,200 cal/day: 2 eggs (144 cal) = 12% of your budget — that's plenty for breakfast
- 1,500 cal/day: 2-3 eggs (144-216 cal) = 10-14% of budget
- 1,800 cal/day: 3 eggs (216 cal) = 12% of budget
- 2,000+ cal/day: 3-4 eggs easily fit
Use our daily calorie calculator to find your target. A kitchen scale helps if you're adding eggs to meals — weigh your toast, cheese, and sides to keep the full breakfast on target. Eggs appear in almost every day of our meal plans — typically 2 eggs for breakfast with toast.
Eggs for Weight Loss: Why They Work
Eggs are one of the most weight-loss-friendly foods:
- High protein per calorie. 6.3g protein for 72 calories. That's 8.8g protein per 100 calories — better than most meats when you factor in cost.
- Incredibly filling. Studies show eggs for breakfast reduce calorie intake for the rest of the day compared to bagels or cereal with the same calories.
- Fast and cheap. 2 scrambled eggs take 3 minutes and cost under $0.50. No excuse to skip breakfast.
- Versatile. Scrambled, boiled, poached, in a tortilla wrap, on toast, over rice — eggs go with anything.
The only way eggs hurt your weight loss is how you cook them. A tablespoon of butter (102 cal) or cooking oil (120 cal) can nearly double the calories of a 2-egg meal. Use cooking spray or an oil sprayer instead.
Eggs vs Other Breakfast Proteins
How do eggs compare to other protein sources for breakfast?
| Food | Portion | Calories | Protein | Protein per 100 cal |
|---|---|---|---|---|
| Eggs (2 large) | 100g | 144 cal | 12.6g | 8.8g |
| Egg whites (4 large) | 132g | 68 cal | 14.4g | 21.2g |
| Greek yogurt, nonfat | 170g (3/4 cup) | 92 cal | 16g | 17.4g |
| Cottage cheese, 1% | 113g (1/2 cup) | 82 cal | 14g | 17.1g |
| Turkey sausage | 56g (2 links) | 120 cal | 10g | 8.3g |
| Bacon (2 slices) | 16g | 86 cal | 6g | 7.0g |
For pure protein efficiency, egg whites and cottage cheese win. But whole eggs offer the best balance of protein, satiety, cost, and convenience. Nobody meal-preps cottage cheese for the week — but hard-boiled eggs take 10 minutes and last 5 days.
The Bottom Line
One egg is 72 calories with 6g of protein. Cook with spray instead of butter, eat 2-3 per day depending on your calorie target, and don't overthink it. Eggs are one of the most effective weight loss foods that exists.
Use our macro calculator to find your protein target, then build your breakfast around it.
