Supplementation is a key way to consume enough EPA and DHA to benefit your health.

Anchovy oil
Anchovy is the primary oil provided in omega-3 supplements from a number of different fisheries throughout the world, including Peru, Chile, Morocco, and Turkey.  

Cod liver oil
Cod liver oil supplements were one of the first commercially sold omega-3 dietary supplements in the modern marketplace and were originally sold for the vitamin content rather than EPA and DHA but remain a popular source of omega-3s.

Pollock oil
Pollock oil is mostly extracted from the livers of pollock caught in Alaska.

Salmon oil
Salmon by-products can be cold-pressed to make “virgin” or minimally processed salmon oils that preserve some nutrients lost in traditional processing.

Tuna oil
Tuna oils are typically made from the by-products of skipjack and yellowfin tuna (not the more controversial bluefin tuna) and are often used to fortify infant formulas because of their high DHA content.

Fish roe oils
Oils made from the roe of different fish such as herring are also available in dietary supplements.

Krill oil
Supplements made from krill — tiny crustaceans from the waters of the Antarctic — provide a phospholipid source of EPA and DHA and are generally available in a smaller pill.

Calanus oil
There is also a small but growing market for EPA and DHA supplements made from calanus, a small crustacean from the Arctic.

Squid oil
Some supplements use oil made from the by-products of the squid meat production industry, which is relatively high in DHA.

Green-shelled mussel oil
New Zealand’s green-shelled mussels also contain EPA and DHA and are being used in supplements.

Algae oil
While an algae oil containing DHA has been on the market for decades, only recently have additional algae sources been commercialized. There are now options for EPA from algae, additional sources of DHA from algae and combinations of the two with different levels of EPA and DHA content. Omega-3 algae sources should not be confused with other algae like spirulina or chlorella.

Genetically modified canola and camelina oil
These two plants are terrestrial plants that have been modified to express EPA and DHA. Both are currently in agricultural trials in different countries, and initial commercial products will focus on aquaculture.