Is Tuna Keto?

Fish
Tuna sticker illustration
KETO VERDICTYES

Tuna is excellent for keto with 0g net carbs per 100g. It’s a lean, protein-dense fish perfect for quick meals—just add healthy fats (mayo-avocado, olive-oil) for macro balance. Canned tuna is convenient for meal prep.

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YOUR PORTION

How much are you having?

Per 100 g (as listed by source). Curated estimate; estimated values.

Scales this reference to your portion, with no extra deductions. Calculation and units.

0gnet carbs in your portion

Total carbs
0g
Fiber
0g
Protein
29.9g
Fat
0.5g
Calories
122
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The 100 g reference amount provides 0g net carbs and can fit common keto portions.

  • Net carbs (100 g)0g
  • Protein (100 g)29.9g
  • Fat (100 g)0.5g
  • Keto verdictKeto-friendly

NUTRITION FACTS

Per 100 g (as listed by source)

Net Carbs
0g
Total Carbs
0g
Fiber
0g
Protein
29.9g
Fat
0.5g
Calories
122

Source: Curated estimate

Source fit: curated estimate; not an exact source match

Net-carb calculation: total carbohydrate - fiber

A USDA reference record exists, but the displayed basis or macros do not directly reproduce it, so KetoLens does not attribute these values to USDA. Check the current label for packaged products.

Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.

WHY IT'S KETO-FRIENDLY

  • Zero net carbs: Perfect fit for strict keto
  • Exceptionally high protein: ~30g/100g supports muscle retention
  • Very lean base: Easy to pair with fats (mayo, olive-oil) to hit macros
  • Shelf-stable canned options simplify meal prep and travel
  • Fast prep: Eat straight from the can or sear steaks in minutes
  • Budget-friendly protein source compared with many fish

PREPARATION SUGGESTIONS

TUNA SALAD WITH MAYO

Mix canned tuna with mayo-avocado, celery, and dijon-mustard; serve on romaine-lettuce leaves or as a bowl.

TUNA LETTUCE WRAPS

Combine tuna with cream-cheese; wrap in romaine-lettuce with avocado and cucumber.

PAN-SEARED TUNA STEAK

Season fresh tuna; sear 2–3 minutes per side in olive-oil for rare–medium.

ASIAN SESAME TUNA

Stir canned tuna with sesame-oil, tamari, ginger, and serve over cucumber or shirataki-noodles.

TUNA STUFFED AVOCADO

Mix tuna with mayo and herbs; spoon into avocado halves and chill.

CREAMY TUNA CASSEROLE

Combine canned tuna with heavy-cream, cream-cheese, and zucchini-noodles; bake until bubbly.

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