Crab

33 calories in 1 crab (40 g). Per 100 g, protein: 17.9 g, carbohydrates: 0 g, fat: 0.74 g.

Serving
1
= 40 g
33KCAL

Crab, 1 crab

33 calories

Protein
7.2 g
Carbs
0 g
Fat
0.3 g
Fiber
0 g
Sugars
0 g

Nutrition Facts

Serving size1 crab (40 g)
Amount per serving
Calories33
% Daily Value*
Total Fat 0.3 g0%
Saturated Fat 0.08 g0%
Cholesterol 38.8 mg13%
Sodium 158 mg7%
Total Carbohydrate 0 g0%
Dietary Fiber 0 g0%
Total Sugars 0 g
Protein 7.2 g
Vitamin D 0 mcg0%
Calcium 36.4 mg3%
Iron 0.2 mg1%
Potassium 104 mg2%

* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. — means not reported. Estimates use the assumptions explained on this page.

vitamins

% of the Daily Value in this serving

  • Vitamin B1255% 1.3 µg
  • Niacin (B3)7% 1.1 mg
  • Choline6% 32.4 mg
  • Folate5% 20.4 µg
  • Vitamin E5% 0.74 mg
  • Vitamin B64% 0.062 mg
  • Riboflavin (B2)3% 0.037 mg
  • Vitamin C1% 1.3 mg
  • Thiamin (B1)1% 0.009 mg

Little or none: Vitamin K, Vitamin A, Vitamin D.

minerals

% of the Daily Value in this serving

  • Copper36% 0.33 mg
  • Selenium31% 17.2 µg
  • Zinc14% 1.5 mg
  • Phosphorus7% 93.6 mg
  • Sodium7% 158 mg
  • Magnesium3% 14.4 mg
  • Calcium3% 36.4 mg
  • Potassium2% 104 mg
  • Iron1% 0.2 mg

How it compares

Against other records in Shellfish, per 100 g. Each nutrient uses only records with a value; matching values are counted separately. Percentages are rounded.

  • Total fat

    Lower than 95%

    Same value as 1 of 40 other records.

    leastmost

  • Calories

    Lower than 90%

    Same value as 1 of 40 other records.

    leastmost

  • Calcium

    Higher than 88%

    Same value as 1 of 40 other records.

    leastmost

  • Carbohydrates

    Lower than 85%

    Same value as 6 of 40 other records.

    leastmost

  • Vitamin C

    Higher than 83%

    Same value as 1 of 40 other records.

    leastmost

  • Iron

    Lower than 75%

    Same value as 2 of 40 other records.

    leastmost

Questions

How many calories are in crab?
1 crab (40 g): 33 calories; protein: 7.2 g, carbohydrates: 0 g, fat: 0.3 g.
How much protein is in crab?
17.9 g per 100 g. Its estimated share of calories is 86%, using 4 kcal per gram of protein.
How many net carbs are in crab?
0 g per 100 g. Calculated as carbohydrate minus fiber, floored at zero.

Similar foods

All 65 reported nutrients, per 100 g+
Water79.7 g
Energy83 kcal
Protein17.9 g
Total lipid (fat)0.74 g
Carbohydrate, by difference0 g
Fiber, total dietary0 g
Total Sugars0 g
Calcium, Ca91 mg
Iron, Fe0.5 mg
Magnesium, Mg36 mg
Phosphorus, P234 mg
Potassium, K259 mg
Sodium, Na395 mg
Zinc, Zn3.8 mg
Copper, Cu0.81 mg
Selenium, Se42.9 µg
Vitamin C, total ascorbic acid3.3 mg
Thiamin0.023 mg
Riboflavin0.093 mg
Niacin2.7 mg
Vitamin B-60.16 mg
Folate, total51 µg
Folic acid0 µg
Folate, food51 µg
Folate, DFE51 µg
Choline, total80.9 mg
Vitamin B-123.3 µg
Vitamin B-12, added0 µg
Vitamin A, RAE1 µg
Retinol1 µg
Carotene, beta0 µg
Carotene, alpha0 µg
Cryptoxanthin, beta0 µg
Lycopene0 µg
Lutein + zeaxanthin0 µg
Vitamin E (alpha-tocopherol)1.8 mg
Vitamin E, added0 mg
Vitamin D (D2 + D3)0 µg
Vitamin K (phylloquinone)0.3 µg
Fatty acids, total saturated0.2 g
SFA 4:00 g
SFA 6:00 g
SFA 8:00 g
SFA 10:00 g
SFA 12:00.002 g
SFA 14:00.008 g
SFA 16:00.098 g
SFA 18:00.072 g
Fatty acids, total monounsaturated0.13 g
MUFA 16:10.027 g
MUFA 18:10.092 g
MUFA 20:10.006 g
MUFA 22:10 g
Fatty acids, total polyunsaturated0.26 g
PUFA 18:20.02 g
PUFA 18:30.009 g
PUFA 18:40.002 g
PUFA 20:40.037 g
PUFA 20:5 n-3 (EPA)0.1 g
PUFA 22:5 n-3 (DPA)0.009 g
PUFA 22:6 n-3 (DHA)0.067 g
Cholesterol97 mg
Alcohol, ethyl0 g
Caffeine0 mg
Theobromine0 mg

Source: USDA Survey foods (FNDDS): foods as Americans report eating them, from What We Eat in America. FDC ID 2706344, published 2024-10-31. Daily Values are the FDA's for adults and children 4 years and older. How we process USDA's data.