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High-protein, low-carb, rich in selenium and B12
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 piece (medium) of Boiled crab legs (85 g) has 82 calories. That works out to 97 calories per 100 g. It contains 0 g of carbs, 16.5 g of protein, 1.3 g of fat and 0 g of fiber. Its 8.3 µg of B12 covers 347% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Selected: 1 piece (medium) · 85 g
82
KCAL / 85G
Carbs
0g
· 0% DV
Protein
16.5g
· 33% DV
Fat
1.3g
· 2% 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 0% · Protein 85% · Fat 15%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 82 kcal | |
| Total fat | 1.3 g | 2% |
| Saturated fat | 0.17 g | 1% |
| Trans fat | 0 g | |
| Sodium | 434 mg | 19% |
| Total carbohydrate | 0 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 16.5 g | 33% |
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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| Serving | Amount | Calories |
|---|---|---|
| 1 piece (medium) | 85 g | 82 kcal |
| 1 piece (small) | 50 g | 49 kcal |
| 3 ounce (medium) | 85 g | 82 kcal |
| 100 g | 100 g | 97 kcal |
| 1 serving (medium) | 120 g | 116 kcal |
| 1 piece (large) | 130 g | 126 kcal |
| 1 cup (shredded) | 140 g | 136 kcal |
| 2 piece (double) | 170 g | 165 kcal |
| 1 serving (large) | 180 g | 175 kcal |
Calculated from 97 calories per 100 g.
Yes, boiled crab legs are cooked and usually only need reheating before serving. Warm them gently with steam; boiling them again for a long time can make the meat dry and tough.
Steam boiled crab legs gently until hot throughout. You can also warm them in a covered pan with a little water; avoid prolonged heating, which can toughen the already-cooked meat.
You eat boiled crab legs by cracking the shell and pulling out the meat. Use a crab cracker or kitchen shears, then serve the meat with lemon or melted butter.
Yes, you can warm frozen boiled crab legs without thawing them first. Steam them gently until hot throughout, allowing extra time compared with thawed legs, and avoid boiling them vigorously.
Use kitchen shears to snip along the thinner side of each boiled crab leg, then peel the shell back. Cut carefully so the blades do not crush or scatter the meat.
Boiled crab legs turn tough or rubbery when they are overheated. They are already cooked, so reheat them only until hot; extended boiling or steaming dries out the delicate meat.
Serve boiled crab legs with corn, potatoes, coleslaw, or a crisp salad. Lemon and melted butter are classic accompaniments, while bread helps round out a simple seafood meal.
Melted butter with lemon is a classic sauce for boiled crab legs. Garlic butter, a light mustard sauce, or cocktail sauce also works, depending on whether you want a richer or sharper flavor.
Store boiled crab legs in a covered container in the refrigerator and eat them within a few days. Discard them if they smell sour or ammonia-like, feel slimy, or were left out for an extended period.
Yes, boiled crab legs can be a nutritious source of protein and provide selenium and vitamin B12. They are naturally low in carbohydrate, but butter, sauces, and added salt can change the overall meal.
Vitamins
B12
8.33µg · 347% DV
B3
2.3mg · 14% DV
B2
0.16mg · 12% DV
B5
0.51mg · 10% DV
Minerals
Copper
0.6mg · 67% DV
Selenium
36µg · 65% DV
Phosphorus
200mg · 29% DV
Iodine
38µg · 25% DV
Sodium
434mg · 19% DV
Potassium ⭐
238mg · 7% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 82 calories in 1 piece (medium) (85 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.
Boiled crab legs are the legs of a crab cooked in their shells, a simple way to prepare seafood enjoyed in coastal cuisines around the world. The meat is tucked inside the shell and has a delicate, slightly sweet, briny flavour with a tender, flaky texture. You can serve the legs warm or chilled; cracking the shell is part of the meal, unless you buy the meat already picked.
In the United States, they often appear at seafood boils or with melted butter and lemon; elsewhere, they may be served simply with dipping sauces or alongside other seafood. Boiled crab legs are high in protein and very low in carbohydrates, with 19.4 g of protein per 100 g. Lemon and a crisp salad make an easy, lighter pairing.
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.
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.
NOVA 2
Minimally Processed
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.
No known major allergens
Vegan
— Not suitable
Vegetarian
— Not suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
SATURATED
0.17g
MONOUNSATURATED
0.26g
POLYUNSATURATED
0.34g
Omega 6:3 ratio 0.1:1
Below the ideal 4:1 — a good omega balance.
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Nutrition data compiled from USDA FoodData Central and scientific sources.