A standard 3-ounce serving of salmon delivers roughly 500 to 1,800 milligrams of omega-3 fatty acids (EPA and DHA combined), depending on the species and whether it’s farmed or wild. That single serving can meet or exceed what most health guidelines suggest for an entire week of omega-3 intake. The exact amount varies quite a bit by the type of salmon on your plate, so the details matter.
Omega-3 Content by Salmon Species
Not all salmon is created equal when it comes to omega-3s. Farmed Atlantic salmon sits at the top, packing about 1,800 mg of EPA and DHA per 100 grams of fish. A typical 3-ounce cooked fillet (roughly 85 grams) delivers around 1,500 mg or more. That’s largely because farmed salmon carry more overall body fat than their wild counterparts, and omega-3s are stored in fat.
Wild Pacific salmon species span a wider range:
- King (Chinook) salmon: about 1,476 mg per 3-ounce serving, the fattiest wild species and comparable to farmed Atlantic
- Sockeye salmon: about 730 mg per 3-ounce serving
- Pink salmon: about 524 mg per 3-ounce serving
Coho and chum salmon fall in the middle, generally landing between 500 and 1,000 mg per serving. The pattern is straightforward: fattier species contain more omega-3s. King salmon has a rich, buttery texture for a reason.
EPA vs. DHA: What You’re Actually Getting
Salmon’s omega-3 content splits into two types, and they do different things in your body. EPA plays a role in reducing inflammation, while DHA is a structural component of your brain and retinas. In farmed Atlantic salmon, the ratio runs roughly 2:1 in favor of DHA. Per 100 grams, that’s about 1,200 mg of DHA and 600 mg of EPA. This DHA-heavy profile is one reason salmon is often singled out among fatty fish for brain and heart health.
Farmed vs. Wild Salmon
Farmed Atlantic salmon tends to be fattier overall, which means it carries more total omega-3s per bite. But “more fat” also means more of every type of fat, including saturated fat. Wild salmon is leaner, with a higher proportion of its fat coming from omega-3s specifically. The Washington State Department of Health notes that farmed salmon fillets contain as many grams of omega-3s as wild salmon, partly because feed producers add enough fish oil to keep omega-3 levels equivalent to or higher than most wild fish.
That said, the gap between species matters more than the gap between farmed and wild. A wild King salmon fillet has far more omega-3s than a wild Pink salmon fillet. If you’re choosing based purely on omega-3 content, species is the bigger variable.
Canned Salmon Holds Up Well
Canned salmon retains its omega-3s surprisingly well. The National Lipid Association places canned salmon in the same tier as fresh wild King and farmed salmon, at 1,000 to 1,500 mg of EPA and DHA per 3-ounce serving. Most canned salmon is wild pink or sockeye, and the canning process doesn’t strip out the beneficial fats. Since canned salmon often includes soft, edible bones, you also pick up extra calcium. It’s one of the most cost-effective ways to get a high omega-3 meal.
Cooking Doesn’t Destroy the Omega-3s
A common concern is that heat breaks down omega-3 fatty acids during cooking. Research from the USDA Agricultural Research Service found that baking salmon to the recommended internal temperature of 145°F does not decrease its omega-3 content. The key is cooking to proper doneness rather than overcooking. Baking and grilling at reasonable temperatures preserve the fatty acid profile well. Deep frying is the method most likely to alter fat composition, mainly because the fish absorbs cooking oil that dilutes the omega-3 concentration relative to total fat.
How Salmon Compares to Supplements
If you’re wondering whether eating salmon is better than popping a fish oil capsule, the short answer is that your body absorbs the omega-3s about equally. A study published in the British Journal of Nutrition compared people eating salmon to those taking salmon oil capsules providing the same amount of omega-3s. Both groups showed similar increases in omega-3 levels in their red blood cells. The omega-3s in both whole salmon and salmon oil capsules are in the same chemical form (triglycerides), which likely explains the equivalent absorption. The practical advantage of whole salmon is that you also get protein, selenium, vitamin D, and B vitamins that a capsule doesn’t provide.
How Much Salmon You Need Per Week
The American Heart Association recommends two 3-ounce servings of fatty fish per week. Two servings of farmed Atlantic or King salmon would give you roughly 3,000 mg of EPA and DHA for the week. Even two servings of the leaner Pink salmon would put you above 1,000 mg weekly, which is still a meaningful intake. For context, many fish oil supplements provide 250 to 500 mg of combined EPA and DHA per capsule.
Salmon is also categorized as a low-mercury fish by the California Office of Environmental Health Hazard Assessment, placing it among the safest choices for frequent consumption. This low mercury level, combined with its high omega-3 content, makes it one of the best risk-to-benefit ratios of any seafood, including for pregnant women and children who are often advised to limit other types of fish.
Quick Reference by Serving
For a 3-ounce cooked serving:
- Farmed Atlantic salmon: ~1,500 to 1,800 mg EPA + DHA
- Wild King (Chinook) salmon: ~1,476 mg
- Canned salmon: ~1,000 to 1,500 mg
- Wild Sockeye salmon: ~730 mg
- Wild Pink salmon: ~524 mg
These numbers shift slightly depending on the season the fish was caught, its diet, and exact preparation method, but they give you a reliable ballpark for meal planning. Even the lowest-ranking salmon species still outperforms most other protein sources for omega-3 content.