Seafood | Pescatarian Keto High Protein Gluten Free

Tuna Fillet

Thunnus spp. Allergens: Fish
Tuna Fillet

Sourcing & Taxonomy

  • Family Scombridae
  • Primary Cuisine Global (especially Mediterranean, Japanese, American)
  • Seasonality Year-Round
  • Source Tuna Fish

What Is Tuna Fillet?

A lean, firm-fleshed portion of tuna fish, highly prized for its rich flavor and versatility in cooking.

"Your ultimate guide to preparing perfect tuna steaks, from selection to searing."

What Does Tuna Fillet Taste Like?

Meaty, Rich, Umami, Slightly Briny

Taste
Umami, Meaty, Slightly briny, Rich
Texture
Firm, Flaky (when cooked through), Silky (when seared rare)
Aroma
Ocean-fresh, Mildly fishy
Acidity
Low

Technical Metrics

Omega-3 Content (Yellowfin)

~1g per 100g

Protein Content

23g per 100g

Recommended Internal Temp (Rare)

120-125°F (49-52°C)

Nutrition Facts

Per 4 oz (113g)
Calories130 kcal
Total Fat1.5 g
Saturated Fat0.5 g
Trans Fat0 g
Cholesterol45 mg
Protein28 g
Total Carbohydrate0 g
Dietary Fiber0 g
Total Sugars0 g
Calcium10 mg
Iron0.8 mg
Potassium440 mg

Chef’s Secret

For a perfect sear, ensure the fillet is dry and the pan is smoking hot with high-smoke-point oil. Sear quickly on each side to keep the center rare.

Tuna Fillet Substitutes & Ratios

The best substitute for Tuna Fillet is Salmon Fillet, used at a 1:1 ratio. Good for grilling/baking, similar firm texture, higher fat content.

Substitutes for Tuna Fillet with ratios
Substitute Ratio Best for
Salmon Fillet Best 1:1 Good for grilling/baking, similar firm texture, higher fat content.
Swordfish Fillet 1:1 Excellent firm, meaty texture for grilling, milder flavor than tuna.
Canned Tuna (drained) 1:1 (by weight, adjust texture) Best for salads, sandwiches; not suitable for searing/grilling.
Chicken Breast 1:1 For non-pescatarian diets, similar lean protein, but lacks fish flavor.

How to Choose & Store Tuna Fillet

  1. Look for firm, moist flesh with a fresh, mild smell.
  2. For sushi-grade, ensure it's labeled as such.

What Pairs Well With Tuna Fillet?

  • Soy sauce
  • ginger
  • sesame oil
  • citrus
  • capers
  • olives
  • garlic
  • herbs.

Frequently Asked Questions

What does Tuna Fillet taste like?

Meaty, Rich, Umami, Slightly Briny Ocean-fresh, Mildly fishy

What is a good substitute for Tuna Fillet?

The best substitute is Salmon Fillet (1:1). Good for grilling/baking, similar firm texture, higher fat content.

How do you choose and store Tuna Fillet?

Look for firm, moist flesh with a fresh, mild smell. For sushi-grade, ensure it's labeled as such.

Related Seafood Ingredients

Need a substitute for Tuna Fillet right now, or a recipe that uses it? Ask Sous, your AI sous-chef.