Fish is generally good. But fat fish is better. The omega-3 fatty acids we obtain from fish oils are some of the best natural agents against chronic degenerative diseases. They reduce blood triglycerides, and they are excellent antithrombotic and antiathyromatous agents. They help prevent and treat coronary heart disease, stroke, arteriosclerosis, high blood pressure, various forms of cancer, inflammatory and autoimmune disorders, etc.
Fat fresh cold water fish of all kinds, such as salmon, mackerel, herring, tuna, sardines, anchovies, etc.

Frequent meals of shellfish; too many crustaceans; salted fish; fish canned in oil.