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Raw tuna belly Calories
High protein, rich in omega-3
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 piece (medium) of Raw tuna belly (85 g) has 179 calories. That works out to 210 calories per 100 g. It contains 0 g of carbs, 20 g of protein, 10.6 g of fat and 0 g of fiber. Its 8 µg of B12 covers 333% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Raw tuna belly Nutrition Facts
Selected: 1 piece (medium) · 85 g
179
KCAL / 85G
Carbs
0g
· 0% DV
Protein
20g
· 40% DV
Fat
10.6g
· 14% DV
Fiber
0g
· 0% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 0% · Protein 46% · Fat 54%
Raw tuna belly nutrition facts table · 1 piece (medium) (85 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 179 kcal | |
| Total fat | 10.6 g | 14% |
| Saturated fat | 2.38 g | 12% |
| Trans fat | 0 g | |
| Sodium | 33 mg | 1% |
| Total carbohydrate | 0 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 20 g | 40% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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How Many Calories in 1 Medium Raw tuna belly?
| Serving | Amount | Calories |
|---|---|---|
| 1 piece (medium) | 85 g | 179 kcal |
| 1 ounce (small) | 28 g | 59 kcal |
| 1 piece (small) | 50 g | 105 kcal |
| 100 g | 100 g | 210 kcal |
| 1 serving (medium) | 100 g | 210 kcal |
| 1 piece (large) | 130 g | 273 kcal |
| 1 serving (large) | 150 g | 315 kcal |
| 2 piece (double) | 170 g | 357 kcal |
| 3 piece (triple) | 255 g | 536 kcal |
Calculated from 210 calories per 100 g.
Frequently Asked Questions About Raw tuna belly
What is raw tuna belly?
Raw tuna belly is the fatty cut from a tuna’s underside, prized for its tender texture and rich flavor. Sushi restaurants often call fatty tuna toro, though the exact cut and fat level vary by tuna species and grade.
What does toro mean when ordering raw tuna belly?
Toro refers to fatty tuna belly, not a separate fish. Chūtoro usually means moderately fatty belly, while ōtoro describes a fattier section; restaurants may use these labels differently depending on the cut and the tuna.
Why is raw tuna belly so rich and buttery?
Raw tuna belly tastes rich and buttery because it contains more fat than lean tuna cuts. Its soft texture is especially noticeable when served chilled in thin slices, so simple seasoning usually works better than a heavy sauce.
How can you tell if raw tuna belly is suitable for sushi?
Ask the fishmonger whether the raw tuna belly has been handled specifically for raw eating and how it was kept cold. “Sushi-grade” is not a universal safety certification, and appearance or a fresh smell alone cannot confirm safety.
Is raw tuna belly safe to eat?
Raw tuna belly carries a risk of foodborne illness, even when it looks fresh. Buy it from a reputable supplier who handles fish for raw consumption, keep it chilled, use clean utensils, and avoid cross-contamination during preparation.
How do you slice raw tuna belly for sashimi?
Slice raw tuna belly while it is cold with a very sharp, clean knife, drawing the blade through the fish in one smooth motion. Cutting across the muscle fibers makes each piece easier to bite and keeps the tender texture.
Can you sear raw tuna belly instead of eating it raw?
Yes, you can quickly sear raw tuna belly, although cooking will change its soft, buttery texture. Use a hot pan and a brief sear, then serve it with rice or vegetables; cook it more thoroughly if raw-fish risks concern you.
What is the difference between raw tuna belly and regular tuna sashimi?
Raw tuna belly comes from the fattier underside, while regular tuna sashimi often uses leaner cuts such as akami. Belly pieces are softer and richer; lean cuts have a firmer bite and a cleaner, less buttery flavor.
How should you store leftover raw tuna belly?
Keep leftover raw tuna belly sealed in the coldest part of the refrigerator and eat it as soon as possible, ideally the same day. If it sat out during serving or smells sour, feels sticky, or looks unusual, discard it.
Can pregnant people eat raw tuna belly?
Pregnant people should avoid raw tuna belly because raw seafood can carry harmful germs, and tuna mercury levels vary by species. Ask your prenatal clinician which cooked tuna choices and serving frequency are appropriate for you.
Raw tuna belly Vitamins & Minerals
Vitamins
B12
7.99µg · 333% DV
B3
8.67mg · 54% DV
B6
0.77mg · 45% DV
Vitamin D
4.68µg · 23% DV
Minerals
Selenium
60µg · 109% DV
Phosphorus
204mg · 29% DV
Iodine
38µg · 25% DV
Potassium ⭐
306mg · 9% DV
Sodium
33mg · 1% DV
Raw tuna belly Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Raw tuna belly
To burn the 179 calories in 1 piece (medium) (85 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Raw tuna belly?
Raw tuna belly is the rich, fatty cut taken from a tuna’s underside, served without cooking. It is prized in Japanese cuisine, where the fattier belly cuts are known as toro, and is now familiar on sushi menus around the world.
Its texture is tender and silky, with a fuller, buttery flavour than leaner tuna. It is commonly sliced for sashimi or served over sushi rice, often with soy sauce and wasabi. Raw tuna belly provides plenty of protein and omega-3 fats, though its richness makes it more substantial than lean tuna. For raw serving, choose fish handled specifically for that purpose and keep it properly chilled; rice and crisp vegetables make a balanced accompaniment.
How Nutritious Is Raw tuna belly?
Nutrient density
Very high
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
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.
Is Raw tuna belly Processed?
NOVA 1
Unprocessed
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 Raw tuna belly Contain Allergens?
Contains these allergens:
Which Diets Is Raw tuna belly Good For?
Vegan
— Not suitable
Vegetarian
— Not suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
Raw tuna belly Fat Profile
SATURATED
2.38g
MONOUNSATURATED
4.34g
POLYUNSATURATED
1.7g
Omega 6:3 ratio 0.1:1
Below the ideal 4:1 — a good omega balance.
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Nutrition data compiled from USDA FoodData Central and scientific sources.