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High protein, low fat, omega-3 source
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 serving (double) of Tuna (double) (170 g) has 197 calories. That works out to 116 calories per 100 g. It contains 0 g of carbs, 43.4 g of protein, 1.7 g of fat and 0 g of fiber. Its 136 µg of Selenium covers 247% of the Daily Value. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Selected: 1 serving (double) · 170 g
197
KCAL / 170G
Carbs
0g
· 0% DV
Protein
43.4g
· 87% DV
Fat
1.7g
· 2% 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 92% · Fat 8%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 197 kcal | |
| Total fat | 1.7 g | 2% |
| Saturated fat | 0.34 g | 2% |
| Trans fat | 0 g | |
| Sodium | 85 mg | 4% |
| Total carbohydrate | 0 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 43.4 g | 87% |
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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| Serving | Amount | Calories |
|---|---|---|
| 1 serving (double) | 170 g | 197 kcal |
| 1 can (medium) | 80 g | 93 kcal |
| 1 serving (medium) | 85 g | 99 kcal |
| 1 piece (medium) | 90 g | 104 kcal |
| 100 g | 100 g | 116 kcal |
| 1 can (double) | 160 g | 186 kcal |
| 1 piece (double) | 180 g | 209 kcal |
| 1 serving (large) | 250 g | 290 kcal |
| 1 piece (large) | 250 g | 290 kcal |
Calculated from 116 calories per 100 g.
Yes, tuna can be part of a weekly diet, but frequent servings may increase exposure to mercury. Vary the fish you eat, and if you are pregnant, ask your healthcare professional which tuna types and amounts are appropriate.
Yes, tuna steak is often served rare, but only when it is sold and handled for raw or undercooked use. Keep it chilled, use a clean board and knife, and avoid serving it rare to people at higher risk from foodborne illness.
A pink centre usually means the tuna steak was cooked briefly and is still rare or medium-rare. Colour alone cannot confirm safe handling, so buy it from a reliable source and keep it properly chilled before cooking.
No, rinsing canned tuna is not necessary for safety and can wash away flavour. Drain it instead if you want to remove the packing liquid; rinsing may make the fish watery, especially in tuna salad.
Tuna packed in water has a cleaner, lighter taste, while oil-packed tuna is richer and often stays more moist. Drain either type to suit your recipe, or use a little of the oil to add flavour to pasta or salad.
Thaw frozen tuna slowly in the refrigerator while it remains wrapped or sits in a covered container. Pat it dry before searing; thawing it on the counter can warm the surface while the centre is still frozen.
Yes, cooked tuna can be frozen in an airtight container, though it may become drier after thawing. Use it in a sauced dish, such as pasta or a casserole, rather than expecting the same texture as freshly cooked steak.
Grey or brown colouring can result from normal changes during cooking and storage, and does not by itself prove the tuna is spoiled. Discard a can that is swollen, leaking, badly dented, or has an off smell when opened.
Yes, the dark strip in a tuna steak is edible, but its stronger, more metallic flavour is not to everyone’s taste. You can trim it away before cooking if you prefer a milder-tasting piece.
Tuna salad should not sit out for more than two hours, or one hour in very hot conditions. Return leftovers to the refrigerator promptly in a covered container, and discard them if they have been left out too long.
Vitamins
B12
3.74µg · 156% DV
B6
1.6mg · 94% DV
B3
14.62mg · 91% DV
Vitamin D
9.69µg · 48% DV
Minerals
Selenium
136µg · 247% DV
Phosphorus
459mg · 66% DV
Iodine
85µg · 57% DV
Magnesium
85mg · 20% DV
Potassium ⭐
561mg · 17% DV
Sodium
85mg · 4% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 197 calories in 1 serving (double) (170 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.
Tuna (double) refers to a double serving of tuna; the name does not specify whether it is fresh or canned, or how it is prepared. Around the world, canned tuna is often used in salads, sandwiches and pasta, while fresh tuna may be grilled, seared or served as a main course. Its firm, meaty texture and mild flavour work well with lemon, herbs and crisp vegetables.
Tuna is high in protein and low in fat, making this a substantial option without much added richness. For a lighter meal, pair it with a leafy salad or vegetables rather than a creamy sauce.
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.
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.
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.
Contains these allergens:
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
SATURATED
0.34g
MONOUNSATURATED
0.34g
POLYUNSATURATED
1.19g
Omega 6:3 ratio 0:1
Below the ideal 4:1 — a good omega balance.
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Nutrition data compiled from USDA FoodData Central and scientific sources.