With so many mixed messages about the health benefits and risks of eating fish, it is hard to know which advice to follow.
Experts say for most people the health benefits of Omega Three fatty acids in fish outweigh any risks.
You should eat two servings a week of fatty fish like Salmon, Herring, Trout, and Albacore Tuna.
Studies show they are good for your heart, and help develop children's brains and eyes.
If you have congestive heart failure, chronic angina, or if there is not enough blood flow to your heart, then Omega Three fatty acids may be harmful.
So check with your doctor first and check on your Mercury.
Family Practitioner Beverly Green, M.D., Ph.D. said, "The Mercury issue is not a big issue for most people."
She continued, "Most people should eat fish."
Women who are, or might become pregnant, and children under six, should avoid fish high in Mercury like Shark, Swordfish, King Mackerel and Tilefish.