1 piece (medium) of Seared tuna (120 g) has 158 calories. That works out to 132 calories per 100 g. It contains 0 g of carbs, 28.8 g of protein, 4.8 g of fat and 0 g of fiber. Its 2.6 µg of B12 covers 110% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.

Seared tuna Nutrition Facts

Selected: 100 g

132

KCAL / 100G

Carbs

· 0% DV

Protein

24g

· 48% DV

Fat

· 5% DV

Fiber

· 0% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 0% · Protein 73% · Fat 27%

Seared tuna Vitamins & Minerals

Vitamins

B12

2.2µg · 92% DV

1mg · 59% DV

8.6mg · 54% DV

0.9mg · 18% DV

Minerals

Selenium

36µg · 65% DV

Phosphorus

250mg · 36% DV

Iodine

50µg · 33% DV

Magnesium

50mg · 12% DV

How Nutritious Is Seared tuna?

Nutrient density

Very high

80/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

57/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Seared tuna Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Seared tuna

To burn the 132 calories in 100 g:

🚶

33min

Walking (5 km/h)

🏃

13min

Running (8 km/h)

🚴

18min

Cycling

🏊

15min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Seared tuna Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Seared tuna Contain Allergens?

Contains these allergens:

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish yes

Soy free

Sesame free

Which Diets Is Seared tuna Good For?

Vegan

— Not suitable

Vegetarian

— Not suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Seared tuna Fat Profile

SATURATED

MONOUNSATURATED

1.2g

POLYUNSATURATED

⚖️

Omega 6:3 ratio 0:1

Below the ideal 4:1 — a good omega balance.

Compare Seared tuna

🐟vs🐟

Seared tuna vs Salmon Fillet74 kcal fewer per 100 g

→🐟vs🐟

Seared tuna vs Canned Tuna16 kcal more per 100 g

→🐟vs🐟

Seared tuna vs Fish22 kcal more per 100 g

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Seared tuna vs TunaSame calories per 100 g

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Foods Similar to Seared tuna

🐟

Salmon Fillet

206 kcal

🐟

Canned Tuna

116 kcal

🐟

Fish

110 kcal

🐟

Tuna

132 kcal

🐟

Baked Sea Bass

110 kcal

🐟

Grilled Sea Bass

124 kcal

🐟

Whiting

90 kcal

🦪

Stuffed Mussels

175 kcal

Frequently Asked Questions About Seared tuna

How many calories and how much protein are in seared tuna?

Seared tuna provides 132 calories and 24 g of protein per 100 g. It contains 0 g of carbohydrates.

Is seared tuna suitable for a keto diet?

Yes. With 0 g of carbohydrates per 100 g, seared tuna is compatible with a keto diet. It also fits pescatarian, Mediterranean, flexitarian, and gluten-free diets.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 23, 2026