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Protein in Sea Bass: How Much per 100g and per Portion

Baked sea bass flesh provides 23.2g of protein per 100g. This is a high-protein food, with 60% of its energy coming directly from protein. For those tracking meal targets, a 129g amount of baked sea bass delivers 30g of protein for 199 kcal. This data is from the official UK food composition database for ‘Bass, sea, flesh only, baked’.

23.2gprotein per 100g
154kcal per 100g
15.1gprotein per 100 kcal
60%of energy from protein

CoFID 16-386 · Bass, sea, flesh only, baked

What the numbers say

  • Protein per calorie. Sea bass provides 15.1g of protein for every 100 kcal. Over half of its energy (60%) comes from protein, with the remainder from fat.
  • UK front-of-pack profile. According to UK front-of-pack colour coding, 100g of baked sea bass is rated ‘low’ for saturated fat, sugars, and salt. Its total fat content of 6.8g is rated ‘medium’.
  • Zero carbohydrate or fibre. As a pure animal protein source, baked sea bass flesh contains no carbohydrate, sugars, or dietary fibre. All of its energy is derived from protein and fat.

Sea Bass macros per 100g

Per 100g Amount % RI Colour
Energy 154 kcal
646 kJ
8% –
Protein 23.2g 46% –
Fat 6.8g 10% medium
of which saturates 1.5g 7% low
Carbohydrate 0g 0% –
of which sugars 0g 0% low
Fibre 0g – –
Salt 0.2g 3% low

% RI is the share of the adult reference intake used on UK food labels (protein 50g, energy 2,000 kcal). Label colour applies the FSA front-of-pack bands for fat, saturates, sugars and salt per 100g. “Trace” means CoFID reports only a trace amount.

Protein in sea bass by amount

Amount Protein kcal Carbs Fat
100g 23.2g 154 0g 6.8g
150g 34.8g 231 0g 10.2g
200g 46.4g 308 0g 13.6g

Example amounts for comparison, not recommended portions. Weigh your own serving.

Amount of sea bass for 20g or 30g of protein

20g protein86gabout 133 kcal
30g protein129gabout 199 kcal
  • To get 30g of protein from this source, you would need to eat 129g of baked sea bass, which contains 199 kcal and 8.8g of fat.
  • For a smaller 20g protein target, an 86g amount is needed, providing 133 kcal.
  • This data is for baked flesh only; remember that cooking methods can alter the final weight and nutrient values of the food you consume.

How it compares with other fish and seafood

Among the 23 fish and seafood items analysed on this site, baked sea bass ranks 7th for protein content per 100g. Its protein-per-calorie score is lower, ranking 16th in the same group, as some other fish provide more protein for fewer calories. For instance, rainbow trout offers slightly more protein at 23.8g per 100g for a similar calorie count. Other fish like anchovies have more protein per 100g (25.2g), while smoked salmon (22.8g) and sardines (22.1g) have comparable amounts. Overall, sea bass is one of the higher-protein fish available.

Per 100g Protein kcal Protein per 100 kcal
Sea Bass 23.2g 154 15.1g
Rainbow Trout 23.8g 150 15.9g
Sardines 22.1g 170 13g
Anchovies 25.2g 191 13.2g
Smoked Salmon 22.8g 184 12.4g

Quick answers

How much protein is in a 150g sea bass fillet?

A 150g amount of baked sea bass flesh contains 34.8g of protein and 231 kcal. A larger 200g amount provides 46.4g of protein.

Is sea bass a lean protein source?

Sea bass is high in protein, but contains 6.8g of fat per 100g, which is a ‘medium’ fat rating on UK food labels. It is less lean than some other white fish.

Does sea bass contain carbohydrates or sugar?

No, the official UK data shows that baked sea bass flesh contains 0.0g of carbohydrate and 0.0g of sugars.

When to speak to a GP or dietitian

  • This food contains fish, one of the 14 allergens that UK food law requires to be declared. If you have a fish allergy, follow the plan from your GP or allergy clinic and check labels on the products you buy.
  • If you have chronic kidney disease, you may have been given a protein target. Check with your renal team or GP before raising your protein intake.
  • If you are pregnant or trying for a baby, the NHS has specific advice on how much oily fish and which types of fish to eat.
  • If tracking protein or calories starts to feel stressful or takes over your day, talk to your GP. Our safety note lists support services.