Tuna (Canned in Water)
116 kcal per 100g
Tuna (Canned in Water) has 116 kcal per 100 g, and 1 can drained (142 g) comes to about 165 kcal, with 36 g protein, 0 g carbs and 1.1 g fat. Values are for tuna canned in water, drained. Tuna canned in oil sits considerably higher per 100 g even after draining, so check the can.
Kairo logs Tuna (Canned in Water) from a photo: the app estimates the portion on the plate and fills in calories and macros from reference data, no typing needed.
Your portion
Type the grams or the calorie budget you have left.
- 26 g
- Protein
- 0 g
- Carbs
- 0.8 g
- Fat
100 g ≈ 6 % of a 2,000 kcal reference intake. Work out your own daily need
Nutrition Facts
Serving size: 100g
Compare with: Bacon (Cooked) · Chicken Breast · Chicken Thigh (Cooked, Skinless)
Health Info
Canned tuna is one of the most calorie-efficient protein sources: 25g of protein for just 116 kcal. It provides selenium, vitamin B12, and omega-3 fatty acids, though levels are lower than in fattier fish like salmon. Choose water-packed over oil-packed to keep calories down, and rotate with other fish to limit mercury exposure.
Macros per 100g
Values per 100 g are based on recognised nutrition reference data. Last reviewed: May 2026. View sources
Track Tuna (Canned in Water) in Kairo
Just photograph it. Kairo's AI reads the portion and the nutrition. Three seconds later the calories and macros are in your log, no typing.
Get Kairo on the App StoreFrequently Asked Questions
- How many calories are in Tuna (Canned in Water)?
- Tuna (Canned in Water) has 116 kcal per 100 g. A typical 142 g serving contains about 165 kcal.
- How much protein is in Tuna (Canned in Water)?
- Tuna (Canned in Water) provides 25.5 g of protein per 100 g.
- How many carbs are in Tuna (Canned in Water)?
- Tuna (Canned in Water) contains 0 g of carbohydrates per 100 g, of which 0 g is sugar.
- How much fat is in Tuna (Canned in Water)?
- Tuna (Canned in Water) contains 0.8 g of fat per 100 g.
- Is Tuna (Canned in Water) good for weight loss?
- At 116 kcal per 100 g, Tuna (Canned in Water) is moderate in calories, so portion size is what matters most for weight loss. Its 25.5 g of protein per 100 g also helps with satiety.
- Can I log Tuna (Canned in Water) in Kairo from a photo?
- Yes, photograph the plate and Kairo estimates the portion of Tuna (Canned in Water), then logs calories and macros from reference data. If the portion looks off, you can adjust the grams and the numbers update.