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Long, curved crab legs with hard, segmented shells in mottled red-orange and cream, some split open to reveal firm white meat, arranged on a plate.
●Low GI
★Natural
💪High Protein

Crab leg Calories

High protein, low fat, rich in minerals and vitamins seafood

In season: Spring · Summer · Autumn · Winter

CALORIES · 100 G

97kcal

GI

0low

POTASSIUM · 100 G

310mg

FIBER · 100 G

0g

Quick answer

1 piece (medium) of Crab leg (80 g) has 78 calories. That works out to 97 calories per 100 g. It contains 0 g of carbs, 15.6 g of protein, 1.2 g of fat and 0 g of fiber. Its 6.1 µg of B12 covers 253% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.

Crab leg Nutrition Facts

Selected: 1 piece (medium) · 80 g

78

KCAL / 80G

Carbs

0g

· 0% DV

Protein

15.6g

· 31% DV

Fat

1.2g

· 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%

Crab leg nutrition facts table · 1 piece (medium) (80 g)

NutrientAmount% DV
Calories78 kcal
Total fat1.2 g2%
Saturated fat0.16 g1%
Trans fat0 g
Sodium316 mg14%
Total carbohydrate0 g0%
Fiber0 g0%
Protein15.6 g31%

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 Crab leg?

ServingAmountCalories
1 piece (medium)80 g78 kcal
1 ounce (small)28 g27 kcal
1 piece (small)50 g49 kcal
100 g100 g97 kcal
1 serving (medium)100 g97 kcal
1 piece (large)120 g116 kcal
1 cup (chopped)130 g126 kcal
1 serving (large)150 g146 kcal
2 piece (double)160 g155 kcal
1 piece (jumbo)200 g194 kcal

Calculated from 97 calories per 100 g.

Frequently Asked Questions About Crab leg

How do you cook crab legs?

Steam crab legs or warm them briefly in boiling water until the meat is hot. Many sold frozen are already cooked, so gentle reheating keeps the meat moist; avoid prolonged boiling.

Are crab legs sold already cooked?

Yes, most crab legs sold in grocery stores are pre-cooked and frozen. Check whether yours are raw or cooked before preparing them: cooked legs need reheating, while raw ones must be thoroughly cooked.

How do you eat crab legs and get the meat out?

Twist the joints apart, then crack the shell with a seafood cracker or sturdy nutcracker and pull out the meat. A small fork helps remove meat from narrow sections; watch for sharp shell fragments.

How do you thaw frozen crab legs?

Thaw frozen crab legs in the refrigerator so they stay cold while defrosting. Avoid leaving them on the counter; once thawed, cook or reheat them promptly rather than letting them sit at room temperature.

How do you reheat crab legs without drying them out?

Reheat crab legs gently by steaming them or warming them in a covered dish with a little water. Stop as soon as the meat is hot; prolonged heating makes it tough and dry.

What is the difference between king crab and snow crab legs?

King crab legs are typically thicker and yield large, rich pieces of meat, while snow crab legs are slimmer and have a sweeter, more delicate texture. Both are commonly sold cooked and frozen.

What should you serve with crab legs?

Crab legs pair well with lemon, melted butter, corn, potatoes, or a crisp salad. Choose lighter sides if you want the crab’s sweet flavor to stand out rather than be overwhelmed.

How should you store leftover crab legs?

Put leftover crab legs in a covered container in the refrigerator as soon as they have cooled. Reheat them until hot throughout, and discard them if they develop an unusual smell or slimy texture.

Are crab legs healthy to eat?

Yes, crab legs are a lean source of protein and provide minerals and vitamins. The overall meal can become much higher in salt or fat when you add salty dips or generous amounts of butter.

Can you eat crab legs during pregnancy?

Yes, crab legs are generally suitable during pregnancy when thoroughly cooked. Avoid raw or undercooked crab, and keep cooked crab properly chilled until serving to reduce the risk of foodborne illness.

Crab leg Vitamins & Minerals

Vitamins

B12

6.08µg · 253% DV

B3

1.76mg · 11% DV

Biotin

2µg · 7% DV

Vitamin E

0.96mg · 6% DV

Minerals

Copper

0.56mg · 62% DV

Selenium

30µg · 55% DV

Iodine

52µg · 35% DV

Phosphorus

176mg · 25% DV

Sodium

316mg · 14% DV

Potassium ⭐

248mg · 7% DV

Crab leg Glycemic Index

GLYCEMIC INDEX

0
Low
0 Low5570100

GLYCEMIC LOAD

0
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Crab leg

To burn the 78 calories in 1 piece (medium) (80 g):

🚶

19min

Walking (5 km/h)

🏃

8min

Running (8 km/h)

🚴

11min

Cycling

🏊

9min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Crab leg?

Crab leg is the meat-bearing part of a crab, usually sold cooked or ready to cook with its shell intact. It is enjoyed in coastal cuisines around the world, including North American seafood boils and steamed-crab meals. The meat is delicate and flaky, with a mild sweetness; getting it out of the shell is part of the experience.

Serve it warm with lemon, melted butter or a simple dipping sauce, or pick the meat for salads, pasta and seafood platters. It is a lean source of protein: 100 g provides 19.5 g of protein and 1.5 g of fat. Gentle steaming or brief reheating helps keep the meat tender. Pair it with vegetables or a fresh salad for a lighter meal.

How Nutritious Is Crab leg?

Nutrient density

Very high

85/ 100

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

High

60/ 100

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 Crab leg 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 Crab leg Contain Allergens?

No known major allergens

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Crab leg Good For?

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

Crab leg Fat Profile

SATURATED

0.16g

MONOUNSATURATED

0.16g

POLYUNSATURATED

0.24g

⚖️

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.