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How much protein is in mussels?

3 oz (85 g) of mussels has 20.2 g of protein and 146 calories: about 13.8 g of protein per 100 calories, which is very high.

At a glance

  • 20.2 g protein and 146 calories per 3 oz (85 g).
  • 13.8 g protein per 100 calories: #91 of 536 foods in our USDA list, #34 of 46 in fish & seafood.
  • 0 g fiber and 314 mg sodium per serving.

What is mussels like to eat?

Mussels are small shellfish cooked in their shells, which open as they steam. They cook in minutes in a pot with garlic, wine or tomato, and the broth is good with bread or pasta.

How can you eat more mussels?

Try this

Steam with garlic, white wine and parsleyCook in a tomato and herb brothToss the meat with pastaAdd to a seafood stew

Is mussels good on a GLP-1?

Mussels are small and tender, so a few eaten with a little warm broth can be a light, manageable meal. Protein density matters more when your appetite is small: see protein on a GLP-1.

How does mussels compare?

FoodServingProteinCaloriesProtein per 100 kcal
Mussels3 oz20.2 g14613.8 g
Clams3 oz21.8 g12617.3 g
Oysters3 oz9.7 g8711.2 g
Shrimp3 oz20.4 g8424.2 g

Close to mussels per calorie: chicken thigh (13.9 g), lean ground beef (13.8 g), spinach (13.2 g), cottage cheese (13.1 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 live mussels that close when tapped, scrub and debeard them before cooking, and discard any that stay shut after cooking.

What's the full nutrition for mussels?

NutrientPer 3 oz (85 g)Per 100 g% Daily Value
Calories146172
Protein20.2 g23.8 g40%
Fat3.8 g4.5 g
Saturated fat0.7 g0.8 g3%
Carbohydrate6.3 g7.4 g
Fiber0 g0 g0%
SugarNot listedNot listed
Sodium314 mg369 mg14%
Calcium28 mg33 mg2%
Iron5.7 mg6.72 mg32%
Vitamin B1220.4 mcg24 mcg850%
Vitamin DNot listedNot listed

USDA FoodData Central, SR Legacy: "Mollusks, mussel, blue, 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, mussel, blue, 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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