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How much protein is in oysters?

3 oz (85 g) of oysters has 9.7 g of protein and 87 calories: about 11.2 g of protein per 100 calories, which is very high.

At a glance

  • 9.7 g protein and 87 calories per 3 oz (85 g).
  • 11.2 g protein per 100 calories: #126 of 536 foods in our USDA list, #41 of 46 in fish & seafood.
  • 0 g fiber and 141 mg sodium per serving.

What is oysters like to eat?

Oysters are shellfish eaten raw on the half shell or cooked, grilled, baked or fried. Cooked oysters also go into stews, stuffings and po' boy sandwiches.

How can you eat more oysters?

Try this

Grill or bake with garlic butterMake an oyster stew with milkAdd to a seafood gumboTop cooked oysters with herbs and lemon

Is oysters good on a GLP-1?

Cooked oysters are soft and small, so one or two in a warm stew is an easy portion to start with. Protein density matters more when your appetite is small: see protein on a GLP-1.

How does oysters compare?

FoodServingProteinCaloriesProtein per 100 kcal
Oysters3 oz9.7 g8711.2 g
Clams3 oz21.8 g12617.3 g
Mussels3 oz20.2 g14613.8 g
Scallops3 oz17.4 g9418.5 g

Close to oysters per calorie: sardines (11.8 g), mushrooms (11.6 g), asparagus (10.9 g), salmon (10.7 g).

Compare more foods with the protein finder, or see protein in every food we cover.

What should you look for when you buy it?

Buy from a trusted seller and keep them cold; cooked oysters are the safer choice over raw.

What's the full nutrition for oysters?

NutrientPer 3 oz (85 g)Per 100 g% Daily Value
Calories87102
Protein9.7 g11.4 g19%
Fat2.9 g3.4 g
Saturated fat0.8 g0.9 g4%
Carbohydrate4.7 g5.5 g
Fiber0 g0 g0%
Sugar1 g1.2 g
Sodium141 mg166 mg6%
Calcium99 mg116 mg8%
Iron7.8 mg9.21 mg43%
Vitamin B1214.9 mcg17.5 mcg621%
Vitamin D0 mcg0 mcg0%

USDA FoodData Central, SR Legacy: "Mollusks, oyster, eastern, wild, cooked, moist heat". % Daily Value uses the FDA's values for adults (protein 50 g, fiber 28 g, sodium 2,300 mg). "Not listed" means USDA didn't measure it for this food, not that it's zero. Brands differ, so check your label.

General education about food, not medical advice. If you have kidney disease or another condition that affects protein, talk to your doctor or a registered dietitian about your own needs.
Sources (3)
  1. USDA FoodData Central (SR Legacy): Mollusks, oyster, eastern, wild, cooked, moist heat
  2. FDA: How to understand and use the Nutrition Facts label
  3. Mozaffarian et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint advisory (ACLM, ASN, OMA, TOS). Obesity Pillars, 2025

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