How Many Calories for Egg?
A large boiled egg contains 78 calories. But the calorie count changes significantly depending on how you cook it — a fried egg has 90, scrambled with butter is 100, and egg whites alone are just 34 calories.
Calories by preparation
| Method | Calories | NOVA |
|---|---|---|
| Boiled (1 large egg)No added fat — same calories as raw | 78 | 1 |
| Poached (1 large egg)Lowest calorie cooking method — no oil needed | 71 | 1 |
| Fried in butter (1 large egg)+15% calories from cooking fatStill NOVA 1 if fried in butter or olive oil. NOVA 4 if using spray oil with emulsifiers (e.g. Frylight) | 90 | 1 |
| Scrambled with butter & milk (1 large egg)Butter and milk add ~22 calories per egg | 100 | 1 |
| Egg whites only (2 whites)Nearly pure protein — 97% of fat is in the yolk | 34 | 1 |
| Egg yolk only (1 large)Where most of the fat, cholesterol, and fat-soluble vitamins live | 55 | 1 |
| Egg on toast (1 egg + 1 slice white)Bread adds ~120 kcal and all the carbsDepends on the bread — check /is/bread for NOVA scores by brand | 198 | — |
Nutrition per 100g
| Nutrient | Per 100g | Per serving |
|---|---|---|
| Energy | 131 kcal / 547 kJ | 82 kcal |
| Protein | 12.6g | 7.9g |
| Carbohydrates | 0g | 0g |
| of which sugars | 0g | — |
| Fat | 9g | 5.7g |
| of which saturated | 2.5g | — |
| Fibre | 0g | — |
| Salt | 0.39g | — |
Serving size: 1 large egg (~63g) · Source: Tesco product page, October 2025
Glucose impact
Low
Glucose risk
Eggs contain less than 0.1g of carbohydrate per 100g, which is nutritionally negligible. They have virtually no effect on blood glucose levels. The combination of protein and fat in eggs actually helps slow the absorption of carbohydrates from other foods eaten at the same meal, making eggs a useful addition to any blood-sugar-conscious diet.
Processing level
Whole eggs in their shell are a single-ingredient, unprocessed food. Whether free range, organic, barn, or conventional — the nutritional profile and NOVA classification are identical. Every egg product we checked at Tesco contains exactly one ingredient: egg.
Egg at Tesco
Source: Tesco product page, October 2025
*Prices were correct at the time of collection and may have since changed. Check Tesco.com for current pricing.
What to watch for when shopping
Whole eggs are always NOVA 1 regardless of brand, size, or farming method. The only egg products that score higher are liquid egg whites with preservatives, pre-made omelettes, or egg-based ready meals. If you are buying eggs in their shell, every option at Tesco is nutritionally equivalent. Budget tip: Tesco Medium Free Range Eggs 12 Pack at £2.80 (23p per egg) offers the best value for free range.
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