Researchers from Wake Forest University in Winston-Salem, N.C., recently tested 30 types of fish to determine which had the healthiest fat profile. They ranked the fish in the following order, with healthiest choices listed first, based on the amount of saturated fat, monounsaturated fat, omega-3 fatty acids and omega 6 fatty acids. The researchers said fish in the bottom tier were unlikely to convey the cardiovascular health benefits patients advised to eat fish hope to achieve.

Top tier:

1. Sockeye salmon

2. Farmed trout

3. Farmed salmon

4. Copper River salmon

5. Coho salmon

6. Bronzini

7. Toothfish

Second Tier:

8. Haddock

9. Cod

10. Hake

11. Halibut

12. Sole

13. Flounder

14. Croa kers

15. Perch

16. Black Bass

17. Swordfish

18. Farmed tilapia

19. Farmed catfish

20. Escolar

Bottom tier:

21. Mahi- mahi

22. Skate

23. Blue fin tuna

24. Triggerfish

25. Monkfish

26. Red Snapper

27. Wahoo

28. Grouper

29. Corvina

30. Tuna

Source: Journal of the American Dietetic Association