Raw oysters calories come to 43 for six oysters (84 g) and 51 per 100 g. That makes them one of the lightest proteins on the seafood menu. Protein supplies 47 percent of the calories, and even five servings of six land at only 214 calories, so the sauces and sides usually matter more than the oysters.
43kcal
1 6 medium oysters · 84 g, eastern, wild, raw
47%protein
4.8 gProtein
2 gCarbs
1.4 gFat
How to burn off 43 kcal
—Walking, brisk
—Jogging
—Cycling, moderate
—Swimming
Skip the math. BodyPal counts these calories from your steps and workouts automatically.
Nutrition facts
Eastern, wild, raw · per 84 g
Calories
43 kcal
Protein
4.8 g
Carbohydrate
2.3 g
Fat
1.4 g
Saturated fat
0.4 g
Cholesterol
34 mg
Sodium
71 mg
Potassium
131 mg
Iron
3.9 mg
Source: USDA FoodData Central
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Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Raw oysters: calories, protein and sodium by serving
Percent of daily value uses the FDA reference of 2,000 kcal a day.
Serving
kcal
Protein
Carbs
Fat
Sodium
% DV kcal
6 oysters (84 g)
43
4.8 g
2.3 g
1.4 g
71 mg
2%
1 oyster (15 g)
8
0.9 g
0.4 g
0.3 g
13 mg
0%
1 cup shucked (248 g)
126
14.2 g
6.7 g
4.2 g
211 mg
6%
100 g
51
5.7 g
2.7 g
1.7 g
85 mg
3%
3 × 6 oysters (84 g)
129
14.4 g
214 mg
5 × 6 oysters (84 g)
214
24 g
357 mg
Six oysters cost 43 calories, and five servings still stop at 214
A single oyster weighs about 15 g and brings 8 calories, 0.9 g of protein and 13 mg of sodium. The standard half-dozen order of 6 oysters (84 g) adds up to 43 calories, which is 2 percent of a 2,000-calorie daily value. Few plates at a raw bar are this light.
The total climbs slowly as orders stack. Two servings of six (168 g) reach 86 calories with 9.6 g of protein. Three servings (252 g) come to 129 calories and 14.4 g of protein. Five servings of six, a serious platter at 420 g, still total just 214 calories and 24 g of protein.
If you buy shucked oysters by the tub, 1 cup (248 g) holds 126 calories, 14.2 g of protein and 211 mg of sodium. That cup is about the same as three half-dozen orders, so it is a handy reference for stews or pan roasts. Counting shells is the easiest way to log them; BodyPal can also log raw oysters from a photo of the plate.
Protein supplies nearly half the calories
Per 100 g, raw oysters carry 5.7 g of protein, 2.7 g of carbs and 1.7 g of fat. In calorie terms that splits into 47 percent protein, 31 percent fat and 22 percent carbs. Protein leads, but oysters are not a pure-protein food the way shrimp or canned tuna are.
The carbs are unusual for seafood. Oysters store a little energy as glycogen, so 100 g shows 2.7 g of carbs, of which only 0.6 g is sugar and 0 g is fiber. Six oysters carry 2.3 g of carbs, a number that barely registers in a day of eating.
Fat stays low at 1.4 g for six oysters, with saturated fat at 0.5 g per 100 g. The trade-off is volume. To get 24 g of protein you need five servings of six, while a denser fish gets there in a single portion. Oysters work best as a light starter or a protein boost, not as the whole meal.
Sodium is present but far from salty
Oysters taste of the sea, so many readers expect a sodium spike. The card says otherwise: 100 g holds 85 mg, and six oysters carry 71 mg, which is 3 percent of the 2,300 mg daily value. Even five servings of six total 357 mg.
Compare that with canned tuna at 247 mg per 100 g, or shrimp at 111 mg. Raw oysters sit below both. If you watch sodium, the oysters themselves are rarely the problem; cocktail sauce, hot sauce and salted crackers are where the number climbs.
Cholesterol reads 40 mg per 100 g against a daily value of 300 mg, a modest figure for shellfish. Potassium adds 156 mg per 100 g. Neither row changes the picture much: this is a low-calorie, low-sodium food with a moderate protein yield.
The toppings decide the final count
A plate of raw oysters on the half shell is almost all oyster and ice. Lemon and a vinegar mignonette add very little. Cocktail sauce, butter, crackers and bread can add more calories than the shellfish beneath them, so log them separately.
Smoked oysters are a different food. Tins from Crown Prince, Bumble Bee or Chicken of the Sea are packed in oil, and their labels will not match the raw numbers on this page. Check the can rather than borrowing the 51 calories per 100 g.
For a fuller meal, pair a half-dozen with something that carries more protein or fiber, such as a green salad with beans or a piece of grilled fish. The oysters set a light base, and the rest of the plate decides how filling the meal is.
How does raw oysters compare?
Here is how raw oysters stack up against shrimp and canned tuna, per 100 g and per usual serving.
Verdict: For the fewest calories per bite, raw oysters win at 51 per 100 g, while shrimp runs about 1.9 times higher at 99. For protein per calorie, pick shrimp at 24 g per 100 g or canned tuna at 19.4 g, since oysters give just 5.7 g.
Most popular raw oysters brands in the United States
2Crown Prince Smoked Oysters in Olive Oil1 can drained · 85 g224 kcal
3Crown Prince Smoked Oysters in Cottonseed Oil1 can · 65 g200 kcal
4Geisha Fancy Smoked Oysters in Sunflower Oil1 can · 85 g235 kcal
5Chicken of the Sea Fancy Smoked Oysters in Oil1 can drained · 85 g176 kcal
6Napoleon Tiny Smoked Oysters85 g200 kcal
7Pampa Smoked Oysters in Vegetable Oil1 can · 65 g200 kcal
8Brunswick Fancy Smoked Oysters2.3 oz · 65 g231 kcal
Every can here holds smoked oysters packed in oil, so their calories per 100 g run three to five times higher than raw oysters in the shell. Source: manufacturer labels / USDA FoodData Central.
Raw oysters FAQs
How many calories are in raw oysters?
Six medium raw oysters (84 g) have 43 calories, and a single oyster about 8. Per 100 g raw oysters have 51 calories.
Are raw oysters good for weight loss?
A half dozen raw oysters is 43 calories with 4.8 g of protein and 1.4 g of fat. At 51 calories per 100 g they are one of the lightest shellfish, though smoked canned oysters run 176 to 235 calories per 100 g.
Raw oysters vs shrimp: which has fewer calories?
Raw oysters have 51 calories per 100 g against 90 for steamed shrimp. Shrimp carries far more protein, 17.2 g per 100 g versus 5.7 g in oysters.
How much protein is in raw oysters?
Raw oysters have 5.7 g of protein per 100 g, so six medium oysters give about 4.8 g and a cup of shucked oysters 14.2 g.
How many calories are in one raw oyster?
One raw oyster (15 g) has about 8 calories. It also carries 0.9 g of protein, 0.4 g of carbs, 0.3 g of fat and 13 mg of sodium, so a single shell barely moves a daily total.
How many calories are in a dozen raw oysters?
Two servings of six raw oysters (168 g) come to 86 calories. That plate also gives 9.6 g of protein and 143 mg of sodium, before any cocktail sauce, butter or crackers are added.
How many calories are in a cup of shucked oysters?
One cup of shucked raw oysters (248 g) has 126 calories, 14.2 g of protein, 6.7 g of carbs and 4.2 g of fat. Sodium comes to 211 mg, or 9 percent of the daily value.
Do raw oysters have carbs?
Yes, raw oysters have 2.7 g of carbs per 100 g, and six oysters carry 2.3 g. Only 0.6 g per 100 g is sugar and fiber is 0 g, so the carb load stays small.
How much sodium is in raw oysters?
Six raw oysters contain 71 mg of sodium, 3 percent of the daily value. Per 100 g the figure is 85 mg, lower than shrimp at 111 mg or canned tuna at 247 mg.
