"Researchers at the University of Michigan report that understanding how fish oil works may even help with the development of new anti-inflammatory drugs."

""Prostanoids help control blood pressure, fight allergies, and modulate inflammation, but too much of them, especially those made from vegetable oils, can also lead to increased pain, swelling and redness in various tissues," William H. Smith, professor and chair of biological chemistry at UM, said in a prepared statement."

""Our study shows that prostanoids made from fish oil are less effective at causing pain and swelling than those made from vegetable oil and that adding fish oil to the diet decreases the amount of prostanoids made from vegetable oil," he said."

"Smith and his research team added vegetable and fish oils to cultured cells and observed the effects. As fish oil amounts increased, the total prostanoids formed by vegetable oil decreased."

"Both oils are converted into prostanoids with the help of enzymes called cyclo-oxygenases (cox) of two types:
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