The best tuna for Omega-3? Here’s what you can expect in a six ounce serving.
- Yellow-fin or Ahi Tuna 400 grams
- Bluefin 2,200 grams
- Skipjack 460 grams
You’ll notice than canned Light Tuna is missing from this list. It is simply not a significant source of Omega-3, with just 340 milligrams from a six-ounce serving.

There are three types of Bluefin Tuna; Northern, Southern and Pacific.
Bluefin is dangerously over fished. The catch has declined by more than 90% over the past forty years.