OystersNutrition reference
Seafood

Oysters

Raw oyster meat, shell removed. Nutrition varies by variety.

51
kcalper 100g
Carbs
2.7g
Protein
5.7g
Fat
1.7g
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Nutrition facts

Per 100 grams

Reference values
Measurement basis
Food state
Raw
Edible portion
Fresh flesh, shell removed
Measurement basis
Per 100 g raw edible portion
Energy (kcal)
51 kcal
Protein
5.7 g
Carbohydrates
2.7 g
Fat
1.7 g
Dietary fiber
0 g
Sugars
0.62 g
Saturated fat
0.474 g
Sodium
85 mg
More nutrients22
Energy (kJ)
213.4 kJ
Cholesterol
40 mg
Calcium
59 mg
Potassium
156 mg
Magnesium
18 mg
Iron
4.61 mg
Zinc
39.3 mg
Vitamin B1
0.018 mg
Vitamin B2
0.09 mg
Vitamin B3
0.925 mg
Vitamin B6
0.031 mg
Vitamin B9 (folate)
7 µg
Vitamin B12
8.75 µg
Vitamin C
0 mg
Vitamin D
0 µg
Vitamin A (RAE)
13 µg
Retinol
13 µg
Beta-carotene
0 µg
Alpha-carotene
0 µg
Beta-cryptoxanthin
0 µg
Vitamin E (alpha-tocopherol)
0.85 mg
Vitamin K1 (phylloquinone)
1 µg

Data sources

4
  1. 1

    CaloriePilot curated nutrition base

    2706351 · Survey (FNDDS); FDC publication 10/31/2024

  2. 2

    United States Department of Agriculture, Agricultural Research Service

    174219 · SR Legacy, April 2018 release

  3. 3

    United States Department of Agriculture, Agricultural Research Service

    171978 · SR Legacy, April 2018 release

  4. 4

    日本文部科学省

    10292 · 日本食品標準成分表(八訂)増補2023年

About this food

Understanding this nutrition reference

Weigh the oyster meat without the shell. This reference uses the USDA raw oyster profile; other varieties can differ.

Plan your portion

How much is in your serving of Oysters?

Nutrition values are reported per 100 g. A typical 3 oz serving (about 85 g) provides roughly 43 kcal. Use the serving sizes below to estimate portions when logging.

Calculated from the per-100-g reference. Values are rounded.
ServingWeightCaloriesCarbsProteinFat
100 g100 g51 kcal2.7 g5.7 g1.7 g
3 oz85 g43.4 kcal2.3 g4.8 g1.4 g
6 oysters84 g42.8 kcal2.3 g4.8 g1.4 g

Use the weight of the edible portion in the food state shown above.

Energy (kcal)
51 kcal
Energy (kJ)
213.4 kJ
Protein
5.7 g
Carbohydrates
2.7 g
Fat
1.7 g
Dietary fiber
0 g
Sugars
0.62 g
Saturated fat
0.474 g
Cholesterol
40 mg
Sodium
85 mg
Calcium
59 mg
Potassium
156 mg
Magnesium
18 mg
Iron
4.61 mg
Zinc
39.3 mg
Vitamin B1
0.018 mg
Vitamin B2
0.09 mg
Vitamin B3
0.925 mg
Vitamin B6
0.031 mg
Vitamin B9 (folate)
7 µg
Vitamin B12
8.75 µg
Vitamin C
0 mg
Vitamin D
0 µg
Vitamin A (RAE)
13 µg
Retinol
13 µg
Beta-carotene
0 µg
Alpha-carotene
0 µg
Beta-cryptoxanthin
0 µg
Vitamin E (alpha-tocopherol)
0.85 mg
Vitamin K1 (phylloquinone)
1 µg

Questions and answers

Oysters nutrition FAQ

How many calories are in oysters?

Oysters provide about 51 calories per 100 g. A typical 3 oz serving (about 85 g) provides roughly 43 calories.

Are oysters high in protein?

Oysters provide about 5.7 g of protein per 100 g and are low in fat, making them a light source of protein.

How are oysters usually eaten?

Oysters are eaten raw on the half shell or cooked by steaming, grilling, frying, or baking. Cooking method and sauces affect the final calories.