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Single-yolk egg Calories
High-quality protein, source of vitamin B12 and choline
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 piece (medium) of Single-yolk egg (50 g) has 72 calories. That works out to 143 calories per 100 g. It contains 0.4 g of carbs, 6.3 g of protein, 5 g of fat and 0 g of fiber. Its 10 µg of Biotin covers 33% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Single-yolk egg Nutrition Facts
Selected: 1 piece (medium) · 50 g
72
KCAL / 50G
Carbs
0.4g
· 0% DV
Protein
6.3g
· 13% DV
Fat
5g
· 6% DV
Fiber
0g
· 0% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 2% · Protein 35% · Fat 63%
Single-yolk egg nutrition facts table · 1 piece (medium) (50 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 72 kcal | |
| Total fat | 5 g | 6% |
| Saturated fat | 1.55 g | 8% |
| Trans fat | 0.02 g | |
| Sodium | 71 mg | 3% |
| Total carbohydrate | 0.4 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 6.3 g | 13% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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How Many Calories in 1 Medium Single-yolk egg?
| Serving | Amount | Calories |
|---|---|---|
| 1 piece (medium) | 50 g | 72 kcal |
| 1 piece (small) | 40 g | 57 kcal |
| 1 piece (large) | 60 g | 86 kcal |
| 1 piece (extra large) | 70 g | 100 kcal |
| 100 g | 100 g | 143 kcal |
| 2 piece (medium) | 100 g | 143 kcal |
| 1 serving (large) | 100 g | 143 kcal |
| 3 piece (medium) | 150 g | 215 kcal |
Calculated from 143 calories per 100 g.
Frequently Asked Questions About Single-yolk egg
What is a single-yolk egg?
A single-yolk egg is an egg containing one yolk, which is the usual form of a chicken egg. It can be cooked and used in recipes just like other eggs; the name distinguishes it from a double-yolk egg.
Is a single-yolk egg better than a double-yolk egg?
No, a single-yolk egg is not inherently better or worse than a double-yolk egg. A double-yolk egg simply contains two yolks, so the main practical difference is how it behaves in a recipe that depends on egg proportions.
Why do some eggs have two yolks instead of one?
A double-yolk egg forms when a hen releases two yolks close together and both become enclosed in one shell. It is more likely in young hens whose laying cycle is still settling, and it does not necessarily signal a problem.
Can a single-yolk egg hatch into a chick?
Yes, a fertilized single-yolk egg can hatch if it is kept under suitable incubation conditions. The number of yolks does not determine whether an egg is fertile; most eggs sold for eating are not fertilized.
Does the color of a single-yolk egg’s yolk show how nutritious it is?
No, a darker yolk does not automatically mean a more nutritious single-yolk egg. Yolk color is largely influenced by pigments in the hen’s feed, so color alone cannot reliably tell you the egg’s quality or freshness.
Is a blood spot in a single-yolk egg safe to eat?
Yes, a small blood spot in a single-yolk egg is usually caused by a tiny blood vessel breaking during egg formation, not by spoilage. You can remove the spot if you prefer, then cook the egg thoroughly.
How should you store a single-yolk egg?
Keep a single-yolk egg in its carton on an inside refrigerator shelf, where the temperature is steadier than in the door. Follow the date on the carton, and discard eggs that are cracked or smell unpleasant.
Can you freeze a single-yolk egg?
Yes, you can freeze a single-yolk egg after cracking it out of its shell. Beat the yolk and white together before freezing to help prevent the yolk from becoming thick and gel-like; thaw it in the refrigerator before cooking.
Can you eat a single-yolk egg raw?
You can, but raw single-yolk egg may carry bacteria such as Salmonella, even when the shell looks clean. Cook eggs until both the white and yolk are firm, especially when serving young children, pregnant people, or anyone with a weakened immune system.
How do you make a jammy single-yolk egg?
For a jammy single-yolk egg, lower it gently into boiling water and cook until the white is set while the yolk remains soft. Transfer it straight to cold water to stop the cooking, then peel once it is cool enough to handle.
Single-yolk egg Vitamins & Minerals
Vitamins
Biotin
10µg · 33% DV
B12
0.55µg · 23% DV
B2
0.25mg · 19% DV
B5
0.7mg · 14% DV
Minerals
Selenium
15µg · 27% DV
Iodine
25µg · 17% DV
Phosphorus
99mg · 14% DV
Zinc
0.65mg · 6% DV
Sodium
71mg · 3% DV
Potassium ⭐
69mg · 2% DV
Single-yolk egg Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Single-yolk egg
To burn the 72 calories in 1 piece (medium) (50 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Single-yolk egg?
A single-yolk egg is an egg with one yolk, usually from a hen. It is an everyday ingredient rather than a prepared dish, used on its own or in recipes. The white sets firm when cooked, while the yolk can stay soft and creamy or become fully set. Depending on the meal and local custom, it may be boiled, fried, scrambled or added to baked dishes; toast and vegetables are familiar accompaniments in many places.
Eggs provide high-quality protein, along with vitamin B12 and choline. For a lighter plate, cook it with little added fat and serve it with vegetables; whole-grain toast makes a simple, more filling pairing.
How Nutritious Is Single-yolk egg?
Nutrient density
Very high
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Satiety score
Medium
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
Is Single-yolk egg Processed?
NOVA 1
Unprocessed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does Single-yolk egg Contain Allergens?
Contains these allergens:
Which Diets Is Single-yolk egg Good For?
Vegan
— Not suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
Single-yolk egg Fat Profile
SATURATED
1.55g
MONOUNSATURATED
1.8g
POLYUNSATURATED
0.95g
Omega 6:3 ratio 16.3:1
Above the ideal 4:1 (16.3:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.