In the first study of its kind, researchers at the University of Pittsburgh have determined that healthy young adults ages 18-25 can improve their working memory even further by increasing their Omega-3 fatty acid intake with fish oil supplements.

FORBES: New Study Shows that Omega-3 Supplements Can Boost Memory in Young Adults

To keep inflammation to a minimum, Dr. O'Keefe recommends a restricted-calorie diet (similar to the Mediterranean diet), consisting of fruits and vegetables, lean protein, nuts, vinegar, tea, and fish oil, as well as low to moderate alcohol intake.

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China only produces about 4 million barrels per day, and imports the remaining amount, making the Asian giant the second largest importer of oil, says the EIA. The largest importer of oil in the world has been the U.S., with an intake of 8.7 million barrels per day, according to the EIA. Japan imports the third most oil, at 4.3 million barrels per day.

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The Mediterranean diet began to gain heart health advocates, with its high content of olive oil, fruits, nuts, vegetables, cereals, moderate amount of fish and poultry, and low intake of dairy products, red meat, processed meats and sweets.

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Investigators in Spain randomized 7447 people at high risk for cardiovascular disease to one of three diets: a Mediterranean diet supplemented with extra-virgin olive oil, a Mediterranean diet supplemented with nuts, or a control diet for which people were advised to lower their intake of dietary fat.

FORBES: Large Trial Shows Cardiovascular Benefits Of Mediterranean Diet