Tuna Steak (yellowfin, fresh)
1 steak (140g)Protein per 100g29.2g
Calories per 100g130
Fat per 100g1.3g
Carbs per 100g0.0g
Fiber per 100g0.0g
Leucine (per serving, est.)2350mg
Typical cost$$$$
Quality 0.92
lit_estimate, complete animal protein
ketolow-carbgluten-freedairy-freepescatarian
Why Tuna Steak (yellowfin, fresh) shows up in protein-forward diets
Fresh yellowfin is leaner than most people expect for an 'oily fish' — most of tuna's fat is concentrated in the belly cut (toro), not the steak most home cooks buy.
Serving-size math
A 1 steak (140g) portion delivers 40.9g of protein and roughly 182 calories. Scaled per 100 calories, that works out to 22.46g of protein — useful for comparing against other foods on a calorie-matched basis rather than a weight-matched one.
Prep tip
Sear 60-90 seconds per side for a rare center; yellowfin steak turns to sawdust texture well-done.
Best for
- cutting
- high-protein-density meals
Allergens
Contains: fish.
Frequently asked
How much protein is in tuna steak (yellowfin, fresh)?
29.2g per 100g, or 40.9g per 1 steak (140g).
Is tuna steak (yellowfin, fresh) a complete protein?
Yes — it's rated a complete, high-quality protein source (lit_estimate, complete animal protein).