# item.guide
Side-by-Side Comparison Fish & Seafood

Atlantic Cod vs. Yellowfin Tuna (Fresh Ahi Steak)

Comparing 2 standards across 9 specifications. 8 key differences identified.

Comparing:
Atlantic Cod
Yellowfin Tuna (Fresh Ahi Steak)

Atlantic cod (Gadus morhua) is a staple lean white fish. Per 100g raw, it provides 82 kcal, 17.8g protein, 0.67g total fat (0.13g saturated), 43mg cholesterol, and 180mg Omega-3 with delicate flaking white flesh.

View full Atlantic Cod spec sheet →

Fresh Yellowfin tuna (Thunnus albacares) is a lean predatory pelagic fish. Per 100g raw, it provides 109 kcal, 24.4g protein, 0.49g fat, and 240mg Omega-3 with dense myoglobin creating deep red sashimi-grade steaks.

View full Yellowfin Tuna (Fresh Ahi Steak) spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
Energy / Calories
82 kcal 109 kcal
Protein
17.8 g 24.4 g
Total Fat
0.67 g 0.49 g
Omega-3 (EPA + DHA)
180 mg 240 mg
Saturated Fat
0.13 g 0.13 g
Cholesterol
43.0 mg 39.0 mg
Mercury Level
Very Low (0.05 PPM) Moderate (~0.35 PPM)
Potassium
413 mg 444 mg
USDA Safe Internal Temp
63°C (145°F) 63°C (145°F) (Rare-seared ahi, ~46°C/115°F, is common but below the FDA-recommended minimum -- relies on the fish being sushi/sashimi-grade and previously frozen to control parasites, which does not address bacterial safety)