Hard Boiled Egg Nutrition Facts

🔥 Calories, Macros, and Nutrition Table

Note: Nutrition values are based on USDA FoodData Central for whole, raw, fresh egg (FDC ID 171287). Boiling causes minimal changes to macronutrients, though water loss can slightly concentrate them by weight. For precise hard-boiled values, consult USDA FoodData Central for hard-boiled eggs.

Hard Boiled Egg provides about 72 calories in one large egg (1.8 oz / 50 g), or 143 calories per 100 g (3.5 oz). The USDA FoodData Central panel for whole egg lists 12.56 g protein, 9.51 g fat, 0.72 g carbs, 0 g fiber, and 0.37 g sugar per 100 g. One large egg weighs about 1.8 oz (50 g) and is the typical serving. The table below shows values per typical serving and per 100 g.

Key takeaway: Hard boiled eggs are low-carb and high-protein, but they are energy-dense, so portion awareness matters.

💪 Protein, Vitamins, and Minerals

Hard Boiled Egg is a complete protein, supplying all nine essential amino acids. One large egg delivers about 6.3 g of protein, while 100 g provides 12.56 g. The protein in cooked eggs is highly digestible—boiling actually improves digestibility compared with raw eggs. This makes hard boiled eggs a practical protein source for snacks, salads, and meal prep.

The yolk contains most of the fat, vitamins, and minerals, while the white is mostly protein and water. The USDA panel lists 0.89 mcg vitamin B12 (37% DV) and 30.7 mcg selenium (56% DV) per 100 g. It also contains vitamin D, choline, and lutein/zeaxanthin, though these are not listed in the provided panel. The glycemic index is not applicable because hard boiled eggs contain almost no carbohydrates (0.72 g per 100 g) and only 0.37 g sugar. This means they have minimal effect on blood sugar, which can be helpful for low-carb and keto eating patterns and for people managing blood sugar.

• Complete protein with all essential amino acids
• ~6.3 g protein per large egg
• ~12.56 g protein per 100 g
• Rich in vitamin B12 and selenium
• No glycemic index; very low sugar

⚖️ Boiled vs Fried, Yolk vs White

Boiling adds no extra fat or calories. Frying typically adds oil, butter, or grease, which increases calories and fat. Hard boiled eggs are also easier to transport and less messy. For weight loss or heart health, boiled eggs are often the better choice. If you fry, use a nonstick pan with minimal oil.

• Hard boiled: no added fat, portable, easy to meal prep
• Fried: added fat and calories, crispy texture, quick to cook
• Best for weight loss: hard boiled
• Best for flavor: fried (in moderation)

Eating the whole egg gives you the full nutrient package. If you remove the yolk, you lose vitamin B12, selenium, and fat-soluble vitamins. The USDA panel values are for the whole egg, so eating only the white changes the numbers. For most people, eating the whole egg is recommended for nutrient density.

🧊 How to Boil, Store, and Serve

How long to boil eggs:

1. Place eggs in a single layer in a saucepan.
2. Add cold water to cover by 1 inch.
3. Bring to a rolling boil over high heat.
4. Cover, remove from heat, and let sit 9–12 minutes.
5. Transfer to ice water for 5 minutes to stop cooking.
6. Peel under running water for easier shell removal.

For a softer yolk, reduce sitting time to 6–8 minutes. For a firm yolk, use 12 minutes. Overcooking can cause a green ring around the yolk; this is harmless but may indicate longer cooking. Hard boiled eggs in the shell last about 1 week in the refrigerator. Peeled eggs last 2–3 days in an airtight container. Do not leave them at room temperature for more than 2 hours.

Serving ideas:

• Slice onto salads for extra protein.
• Mash with Greek yogurt for a lighter egg salad.
• Pair with avocado and whole-grain toast.
• Add to grain bowls or ramen.
• Make deviled eggs with mustard and paprika.

✅ Health Impact, Weight Loss, and Cholesterol

Hard boiled eggs are healthy for most people. They provide high-quality protein and key micronutrients. However, they are energy-dense at 143 kcal per 100 g, so portion control matters for weight loss. They are low in carbohydrates (0.72 g per 100 g) and have no glycemic index, making them suitable for low-carb and keto eating patterns. However, they are not a low-calorie food, so portion control is important for weight loss.

• Weight loss: eat 1–2 eggs with vegetables; track portions.
• Keto: ~0.7 g net carbs per 100 g; very keto-friendly.
• Blood sugar: 0.37 g sugar per 100 g; no glycemic index.
• Everyday: 1–2 eggs daily fits most balanced diets.

Hard boiled eggs contain dietary cholesterol, mostly in the yolk. For most people, dietary cholesterol has a smaller effect on blood cholesterol than saturated and trans fats. The 2020–2025 Dietary Guidelines for Americans removed the specific daily cholesterol limit, but people with heart disease or diabetes should follow their doctor’s advice. Boiling does not add saturated fat, unlike frying. A plain hard boiled egg has minimal sodium; adding salt increases sodium, so season with black pepper, paprika, or herbs if you are tracking sodium.