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    Ingredient guide · Ingredient reference

    Is branzino healthy? Protein, omega-3s and mercury

    Branzino, or European seabass, can provide protein and omega-3 fats as part of a varied diet. Its nutritional value does not make it mercury-free. Identify the species and source before applying fish advice, because European seabass, black sea bass and Chilean sea bass are not interchangeable names for the same fish.

    Read the evidence ↓

    Supplement Science Insights Editorial Team

    Published September 23, 2026

    Identify European seabass

    FAO identifies European seabass as Dicentrarchus labrax. The BIM nutrition handbook uses that species name and highlights protein, omega-3s, vitamin B12 and several other nutrients. These composition findings support a food choice, not a guarantee of disease prevention. [1][2]

    Amounts depend on the actual fish and serving

    A database entry or supplier label is more useful when species, preparation and serving weight match the food. Avoid copying exact values from a mixed-species sea-bass entry and presenting them as a measured result for every branzino fillet. Added oil, batter and sauces change the finished meal. [2][3]

    Do not borrow another species’ mercury category

    The inspected FDA/EPA advice does not give an explicit branzino entry. A category for black sea bass or Chilean sea bass should not be silently reassigned. For pregnancy, children or frequent consumption, use clearly identified choices in applicable guidance or obtain source-specific advice. [4][1]

    Make a species-aware choice

    Imagine a restaurant menu says only sea bass. Ask which species is served instead of assuming the lowest-mercury category. Pair the fish with a varied meal and favor preparations that do not add large amounts of salt or frying fat. [4][3]

    Hypothetical example — compare hypothetical seafood labels
    QuestionPractical interpretation
    Dicentrarchus labraxEuropean seabass
    Mixed-species nutrition entryNot a batch measurement
    Different sea-bass nameCheck the species
    Pregnancy or childUse appropriate fish advice
    Is branzino healthy? Protein, omega-3s and mercury — original article outline diagram
    Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

    Sources for this article

    1. FAO- Dicentrarchus labrax
      Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.
    2. BIM Seafood Nutrition Handbook: seabass
      Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.
    3. Fish and shellfish - NHS
      Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.
    4. Advice about Eating Fish | FDA
      Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.