(IMAGE) Kyoto University Caption Kyoto University researchers have found that fish oil transforms fat-storage cells into fat-burning cells, which may reduce weight gain in middle age. Fish oil activates receptors in the digestive tract, fires the sympathetic nervous system, and induces storage cells to metabolize fat. Credit Eiri Ono/Kyoto University Usage Restrictions Please credit Eiri Ono/Kyoto University License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.