Many mainstream health organizations recommend a minimum of 250-500 mg ofomega-3 per day for healthy adults (1, 2, 3).
You can get high amounts of omega-3 fats from fatty fish, algae and several high-fat plant foods.
Here is a list of 12 foods that are very high in omega-3.
1. Mackerel (4107 mg per serving)
In Western countries, they are commonly smoked and eaten as whole fillets at breakfast.
They are incredibly rich in nutrients, and a 3.5 oz (100 g) piece of mackerel provides 200% of the RDI for vitamin B12 and 100% for selenium (4).
On top of that, these fish are quite tasty yet require almost no preparation.
Omega-3 content: 4107 mg in one piece, or 5134 mg per 100 grams (3.5 oz).
2. Salmon (4023 mg per serving)
Salmon is one of the most nutrient-dense foods on the planet.
It contains high-quality protein and a variety of nutrients, including large amounts of magnesium, potassium, selenium and B-vitamins (5, 6).
Studies show that people who regularly eat fatty fish, like salmon, have a lower risk of diseases like heart disease, dementia and depression (7, 8, 9, 10).
Omega-3 content: 4023 mg in half a fillet, or 2260 mg in 100 grams (3.5 oz).
3. Cod Liver Oil (2664 mg per serving)
Cod liver oil is more of a supplement than a food.
As the name implies, it is oil that is extracted from the livers of cod fish.
Not only is this oil high in omega-3 fatty acids, it is also loaded with vitamin D (338% of the RDI) and vitamin A (270% of the RDI) (11).
Taking just a single tablespoon of cod liver oil therefore more than satisfies your need for three incredibly important nutrients.
However, definitely don’t take more than a tablespoon, because too much vitamin A can be harmful.
Omega-3 content: 2664 mg in a single tablespoon.
4. Herring (3181 mg per serving)
Herring is a medium-sized oily fish. It is often cold-smoked or precooked, and then sold as a canned snack.
Smoked herring is a popular breakfast food in countries like England, where it is served witheggs and called kippers.
A standard smoked fillet contains almost 100% of the RDI for vitamin D and selenium, and 50% of the RDI for B12 (12).
Omega-3 content: 3181 mg per fillet, or 1729 mg per 100 grams (3.5 oz).
5. Oysters (565 mg per serving)
Shellfish are among the most nutritious foods you can eat.
In fact, oysters contain more zinc than any other food on the planet. A 100-gram portion of raw oysters (6–7 oysters) contains 600% of the RDI for zinc, 200% for copper and 300% for vitamin B12 (13, 14).
Oysters are usually eaten as an appetizer, snack or whole meal. Raw oysters are a delicacy in many countries.
Omega-3 content: 565 mg in 6 oysters, or 672 mg per 100 grams (3.5 oz).
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