Shellfish, NFS: Nutrition Facts

Generic food Fish and Seafood

Shellfish, NFS contains 146 kcal per 100 g. A typical serving of 1 cup (135 g) provides about 197 kcal.

Roughly 44% of its calories come from protein, with 42% from fat and 14% from carbohydrates (estimated with general energy factors).

That is close to the median for shellfish on FoodFactly (143 kcal per 100 g).

100 g provides 61% of the Daily Value for selenium, 43% of the Daily Value for Vitamin B12 and 23% of the Daily Value for copper.

The data comes from the USDA Food and Nutrient Database for Dietary Studies (FNDDS), which calculates values from recipes of the ingredients.

146kcal per 100 g
15.5 gprotein
4.9 gcarbohydrates
6.7 gfat
197kcal in 1 cup (135 g)

Nutrition facts

Nutrition facts for the selected amount
NutrientAmount per 100 g% DV
Calories C 146 kcal
Total fat C 6.7 g 9%
Saturated fat C 1.2 g 6%
Cholesterol C 140 mg 47%
Sodium C 348 mg 15%
Total carbohydrates C 4.9 g 2%
Dietary fiber C 0.2 g 0.7%
Total sugars C 0.07 g
Protein C 15.5 g 31%
Vitamin A C 63 µg7%
Vitamin C C 0 mg0%
Vitamin D C 0.1 µg0.5%
Vitamin E C 2.4 mg16%
Vitamin K C 5.6 µg5%
Thiamin (B1) C 0.067 mg6%
Riboflavin (B2) C 0.04 mg3%
Niacin (B3) C 2.2 mg14%
Vitamin B6 C 0.17 mg10%
Folate (B9) C 28 µg7%
Vitamin B12 C 1 µg43%
Choline C 90.5 mg16%
Calcium C 64 mg5%
Iron C 0.53 mg3%
Magnesium C 26 mg6%
Phosphorus C 273 mg22%
Potassium C 131 mg3%
Zinc C 1.1 mg10%
Copper C 0.21 mg23%
Selenium C 33.3 µg61%

% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.

Nutritional breakdown

Protein: 44%Carbohydrates: 14%Fat: 42%146kcal / 100 g
  • Protein 44%
  • Carbohydrates 14%
  • Fat 42%

Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).

Vitamins and minerals, % Daily Value per 100 g

Selenium61%Vitamin B1243%Copper23%Phosphorus22%Choline16%Vitamin E16%Niacin (B3)14%Vitamin B610%Zinc10%Vitamin A7%

Nutritional insights

  • Fiber0.2 gabove the median for shellfish (median 0 g)
  • Sugars0.07 gabove the median for shellfish (median 0.01 g)
  • Fat6.7 gabove the median for shellfish (median 5.7 g)
  • Saturated fat1.2 gabove the median for shellfish (median 0.92 g)
  • Sodium348 mgbelow the median for shellfish (median 363 mg)
  • Protein per 100 kcal10.6 gprotein density, useful for comparing foods with different calorie levels
  • Water70.8 gwater per 100 g, which largely explains differences between raw, cooked and dried forms

Full nutrient profile

Fats and cholesterol (2)
Monounsaturated fat C2.4 g
Polyunsaturated fat C2.3 g
Individual fatty acids (19)
EPA (omega-3, 20:5 n-3) C0.074 g
DHA (omega-3, 22:6 n-3) C0.076 g
Linoleic acid (omega-6, 18:2) C1.9 g
SFA 4:0 C0.011 g
SFA 6:0 C0.007 g
SFA 8:0 C0.004 g
SFA 10:0 C0.01 g
SFA 12:0 C0.017 g
SFA 14:0 C0.052 g
SFA 16:0 C0.77 g
SFA 18:0 C0.29 g
MUFA 18:1 C2.3 g
PUFA 18:3 C0.23 g
PUFA 20:4 C0.038 g
MUFA 16:1 C0.045 g
PUFA 18:4 C0 g
MUFA 20:1 C0.037 g
MUFA 22:1 C0 g
PUFA 22:5 n-3 (DPA) C0.007 g
Carotenoids (6)
Beta-carotene C3 µg
Lycopene C0 µg
Lutein + zeaxanthin C3 µg
Retinol C63 µg
Carotene, alpha C0 µg
Cryptoxanthin, beta C0 µg
Other components (8)
Water C70.8 g
Alcohol C0 g
Caffeine C0 mg
Theobromine C0 mg
Folic acid C7 µg
Folate, food C17 µg
Vitamin E, added C0 mg
Vitamin B-12, added C0 µg

Foods with a similar nutritional profile

FoodCaloriesProteinCarbsFat
Shrimp, NFS 146 15.5 g 4.9 g 6.7 g
Clams, NFS 143 16.1 g 6.7 g 5.2 g
Fish, flounder, NFS 128 15.4 g 0.01 g 6.9 g
Fish, tuna salad 187 16 g 9.4 g 9.3 g
Mussels 109 15.1 g 4.7 g 2.8 g
Escargot 158 20 g 2.5 g 6.9 g
Crustaceans, crab, blue, crab cakes, home recipe 155 20.2 g 0.48 g 7.5 g
Fish, croaker 189 19.9 g 7.8 g 8.2 g

Per 100 g. Calories in kcal. n/a: not reported by the source.

Frequently asked questions

How many calories are in shellfish?

100 g of shellfish has 146 kcal. 1 cup (135 g): about 197 kcal.

Is shellfish high in protein?

Shellfish contains 15.5 g of protein per 100 g (31% of the 50 g Daily Value), or 20.9 g in 1 cup (135 g). About 44% of its calories come from protein.

How many carbs are in shellfish?

Shellfish has 4.9 g of total carbohydrates per 100 g, including 0.2 g of fiber and 0.07 g of sugars.

How much fat is in shellfish?

Shellfish contains 6.7 g of fat per 100 g, of which 1.2 g is saturated (6% of the Daily Value).

What vitamins and minerals does shellfish contain?

Per 100 g, the most notable amounts relative to the Daily Value are selenium (61% DV), Vitamin B12 (43% DV), copper (23% DV), phosphorus (22% DV) and choline (16% DV). The full list is in the vitamins and minerals table above.

How much sodium is in shellfish?

100 g contains 348 mg of sodium, 15% of the 2,300 mg Daily Value.

Where does this nutrition data come from?

From USDA FoodData Central: FNDDS (Survey), record dated October 31, 2024. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.

Source of the nutrition information

  • USDA FoodData Central: FNDDS (Survey), record 2706336. License: CC0 1.0 (U.S. public domain). Source record dated October 31, 2024. Imported November 6, 2026.

Last updated: . Data quality score: 100/100 (how it is calculated).

General nutrition information, not medical advice. Individual needs differ; see our disclaimer.