Farmed Salmon Feed & Lipid Profile Simulator

Investigate how shifting aquaculture diets reshape EPA, DHA & Omega-6 retention in Atlantic salmon fillets

Ars Technica Science Brief Bioaccumulation Model AHA Target Engine
Historical Presets:

Aquaculture Feed Mixer

Total: 100%
Marine Fish Oil (%) 12.0%

High in long-chain EPA (18%) & DHA (11%) from wild forage fisheries

Terrestrial Plant Oils (Rapeseed/Soy) (%) 38.0%

High in short-chain ALA (omega-3) and Linoleic Acid (omega-6)

Microalgae EPA/DHA Oil (%) 5.0%

Fermented Schizochytrium oil concentrate (35% DHA, 15% EPA)

Wild Pelagic Fish Meal (%) 15.0%

Residual marine lipids (~9% lipid) & bioavailable amino acids

Plant Proteins & Starches (%) 30.0%

Soy/wheat concentrates; non-marine binders

Fillet Biochemical State

Retention Active
EPA + DHA PER PORTION
1680.0 mg
-42.5% vs 2002
N-3 TO N-6 RATIO
1.85:1
Good Balance
SERVINGS FOR 3,500mg AHA TARGET
2.1
Fillets / week
FILLET TOTAL FAT
14.2 g
Per 100g tissue
FILLET CROSS-SECTION
DHA (Docosahexaenoic Acid, 22:6 n-3) 680 mg/100g
EPA (Eicosapentaenoic Acid, 20:5 n-3) 520 mg/100g
ALA (Alpha-Linolenic Acid, 18:3 n-3 - Plant) 840 mg/100g
LA (Linoleic Acid, 18:2 n-6 - Plant Pro-inflammatory) 1100 mg/100g

American Heart Association & WHO Guideline Equivalence

Target: 250–500 mg/day (3,500 mg/wk)
2002 Historical Standard (Forage Fish Feed)
A single 140g portion delivered ~2,920 mg of EPA+DHA. Just 1.2 meals per week met optimal cardiac protection guidelines with an n-3:n-6 ratio of >4:1.
Current Simulated Diet Result
At 1680.0 mg per 140g portion, consumers must eat 2.1 portions weekly to match target cardio thresholds.