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

Atlantic Mackerel vs. Rainbow Trout (Farmed)

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

Comparing:
Atlantic Mackerel
Rainbow Trout (Farmed)

Atlantic mackerel (Scomber scombrus) is an oily pelagic fish. Per 100g raw, it provides 205 kcal, 18.6g protein, 13.9g healthy fats (3.3g saturated), an extraordinary 2,590mg Omega-3 (EPA+DHA), and exceptionally low mercury.

View full Atlantic Mackerel spec sheet →

Rainbow trout (Oncorhynchus mykiss) is a freshwater salmonid finfish. Per 100g raw, it provides 119 kcal, 20.5g protein, 3.46g fat (0.72g saturated), 840mg Omega-3s, and very low mercury.

View full Rainbow Trout (Farmed) spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
Energy / Calories
205 kcal 119 kcal
Protein
18.6 g 20.5 g
Total Fat
13.9 g 3.46 g
Omega-3 (EPA + DHA)
2,590 mg 840 mg
Saturated Fat
3.30 g 0.72 g
Cholesterol
70.0 mg 58.0 mg
Mercury Level
Very Low (< 0.05 PPM - Atlantic Scomber species) Very Low (< 0.03 PPM)
Potassium
314 mg 361 mg
USDA Safe Internal Temp
63°C (145°F) 63°C (145°F)