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Protein-rich, convenient lunch, contains omega-3
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 piece (medium) of Tuna Sandwich (140 g) has 294 calories. That works out to 210 calories per 100 g. It contains 37.8 g of carbs, 18.2 g of protein, 7.7 g of fat and 2.9 g of fiber. Its 1.5 µg of B12 covers 64% of the Daily Value. Its glycemic index is 60 (medium), so it raises blood sugar at a moderate pace.
Selected: 1 piece (medium) · 140 g
294
KCAL / 140G
Carbs
37.8g
· 14% DV
Protein
18.2g
· 36% DV
Fat
7.7g
· 10% DV
Fiber
2.9g
· 10% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 52% · Protein 25% · Fat 23%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 294 kcal | |
| Total fat | 7.7 g | 10% |
| Saturated fat | 1.54 g | 8% |
| Trans fat | 0 g | |
| Sodium | 602 mg | 26% |
| Total carbohydrate | 37.8 g | 14% |
| Fiber | 2.9 g | 10% |
| Protein | 18.2 g | 36% |
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 piece (medium) | 140 g | 294 kcal |
| 1 piece (mini) | 70 g | 147 kcal |
| 1 piece (small) | 90 g | 189 kcal |
| 100 g | 100 g | 210 kcal |
| 1 serving (medium) | 140 g | 294 kcal |
| 1 piece (large) | 200 g | 420 kcal |
| 1 serving (large) | 200 g | 420 kcal |
| 1 piece (extra large) | 250 g | 525 kcal |
| 2 piece (double) | 280 g | 588 kcal |
Calculated from 210 calories per 100 g.
To make a Tuna Sandwich, drain canned tuna and mix it with mayonnaise or olive oil, then add it to bread with lettuce, tomato, or sliced onion. Assemble it just before eating so the filling does not make the bread soggy.
A Tuna Sandwich can be a filling lunch that provides protein and omega-3 fats. Add vegetables and go easy on mayonnaise to keep it balanced; if your canned tuna tastes salty, skip extra salt in the filling.
Chunk light tuna gives a milder flavor and tends to have less mercury than albacore, while albacore has a firmer texture and stronger taste. Either works in a Tuna Sandwich; choose based on flavor and how often you eat tuna.
Soft sandwich bread is easy to bite through, while sourdough or a sturdy roll holds a wetter Tuna Sandwich filling better. Lightly toasting the bread helps it stay firm, especially if you add tomato, pickles, or a generous amount of dressing.
A Tuna Sandwich is best eaten soon after it is made, but it can be kept covered in the refrigerator for up to a day. The bread will soften as it sits, so store the filling separately if you are preparing lunch ahead.
Freezing a Tuna Sandwich is not recommended because mayonnaise can separate and fresh vegetables turn watery after thawing. If you need to prepare ahead, freeze the tuna filling on its own only if it contains no mayonnaise, then mix and assemble after thawing.
Yes, you can make a Tuna Sandwich without mayonnaise by mixing the tuna with olive oil and lemon juice, mashed avocado, or plain yogurt. These options keep the filling moist while giving it a different flavor and texture.
A Tuna Sandwich pairs well with a green salad, soup, fruit, or crunchy vegetables such as carrots and cucumber. For a classic lunch, serve it with pickles or potato chips; choose a lighter side if the sandwich has a rich, creamy filling.
It is better not to rely on a Tuna Sandwich every day, because tuna contains mercury and levels vary by species. Varying your fish choices, especially choosing lower-mercury options more often, helps limit repeated exposure.
To make a tuna melt, fill bread with tuna mixed with a little mayonnaise and add cheese, then toast it in a pan or sandwich press until the bread is crisp and the cheese melts. Add tomato if you like, but avoid overfilling so it heats evenly.
Vitamins
B12
1.54µg · 64% DV
B3
4.48mg · 28% DV
B2
0.18mg · 14% DV
B1
0.15mg · 13% DV
Minerals
Selenium
27µg · 49% DV
Sodium
602mg · 26% DV
Phosphorus
154mg · 22% DV
Iodine
21µg · 14% DV
Potassium ⭐
224mg · 7% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 294 calories in 1 piece (medium) (140 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.
A Tuna Sandwich puts tuna inside bread, often with crisp salad vegetables such as lettuce, tomato or onion. The tuna is commonly canned and drained, then mixed with lemon or mayonnaise according to taste. It is a familiar, adaptable lunch rather than a dish tied to one particular regional tradition.
The filling is savoury and tender, while fresh vegetables add crunch. It works well packed for work or school, or served with a simple salad or soup. Tuna makes it a protein-rich, convenient meal; this version provides 13 g of protein per 100 g. For a lighter sandwich, use less mayonnaise and add plenty of greens, or choose a whole-grain roll for a heartier texture.
Medium
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 3
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
— Not suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
SATURATED
1.54g
MONOUNSATURATED
2.38g
POLYUNSATURATED
1.54g
Omega 6:3 ratio 0.5:1
Below the ideal 4:1 — a good omega balance.
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Nutrition data compiled from USDA FoodData Central and scientific sources.