Mussels · cooked

In 100 g of cooked mussels (shelled meat), you get roughly 172 kcal, 24 g of protein, 7 g of carbs and 4.5 g of fat. This profile is very protein-dense: about 14 g of protein per 100 kcal. The carbs come mostly from glycogen naturally present in the mollusc, which explains an unusual number for a seafood.

Mussels are above all a concentrate of micronutrients: exceptional amounts of vitamin B12, iron, zinc, selenium, iodine, manganese and some omega-3. A single serving often covers the daily B12 requirement several times over. That makes them an interesting food for energy, oxygen transport, immunity and recovery after training.

In France, bouchot mussels (Mont-Saint-Michel Bay, PDO) are prized for their plump, tender meat, and rope-grown or Spanish mussels are also very common. Irish or Dutch mussels tend to be more even in size. Taste varies with origin and season, but the nutritional values stay close to those on this page.

When buying, shells should be closed or close when you tap them, smell of the sea and not be chipped. Discard any that stay open, feel very light or smell bad. A 1 kg bag of mussels typically yields only 250 to 300 g of cooked meat, so plan for 500 g to 1 kg per person depending on appetite.

Rinse the mussels in cold water, remove the beard (byssus) by pulling it off sharply, and scrub the shells if needed. Do not leave them soaking in fresh water for long, as they may die. The simplest cooking: in a pot with a sliced onion and a little white wine or water, covered over high heat for 5 to 7 minutes, until the shells open.

Be careful not to overcook them, because the meat turns tough and rubbery. Once open, take them off the heat. To stay within a tight calorie budget, replace the cream of the classic recipe with lemon, garlic, parsley and shallots. Cream sauce easily adds 150 to 300 kcal per serving, which completely changes the meal's total.

Mussels should be eaten cooked. Before cooking, keep them in the fridge, in a paper bag or damp cloth, never in a sealed plastic bag or in water, and eat them within 24 to 48 hours. After cooking, throw away all mussels that stayed closed: they were dead or damaged, and you should not force them open.

Cooked mussels keep for 24 hours in the fridge in a sealed container and should be reheated gently so they do not toughen. Pregnant women, vulnerable people and those with weakened immunity should avoid raw or undercooked shellfish, as with all molluscs. If in doubt about freshness, do not take any risk: food poisoning costs far more than one meal.

When cutting, mussels are a very good choice: a 150 g serving of cooked meat provides about 36 g of protein for 260 kcal, with a strong satiety effect and great richness in iron and B12. You can include them in a light dinner with vegetables, preparing the sauce with lemon or broth rather than cream.

When bulking, they complement a starch-based meal well: mussels with rice, potatoes or pasta, plus a quality oil. They do not create a surplus by themselves, but they provide complete protein and minerals that are hard to get elsewhere. The iron is especially useful if you train hard or tend to run low on energy.

Common mistakes: counting the weight of the shells in your portion (only the meat counts), overcooking them, drowning them in a rich sauce or pairing them with large portions of fries without logging it. A plate of mussels and fries can exceed 900 kcal, while the mussels alone are a light food. So remember to weigh the meat once shelled.

As alternatives, shrimp offers a very similar protein profile with few carbs, and sardines or mackerel provide more omega-3. Canned mussels in brine or natural juice are handy in a pinch, as long as you check the salt. Vary your seafood to benefit from their different minerals, and always remember to cook them properly.