This was a couple things that came up when I searched.
The University of Georgia reported in the Journal of Nutrition that one of the benefits of fish oil is its ability to prevent pre-fat cells from converting to fat cells in the body by effectively causing them to die, thus reducing overall accumulation of fat.
Additionally, scientists in Australia discovered that fat loss benefits of fish oil combined with diet and exercise were significantly greater than diet and exercise alone.
A recent study in Japan demonstrated that mice who experienced the benefits of fish oil had faster metabolisms and gained less weight in the first place than mice who did not experience the benefits of fish oil (these researchers believe the same benefits of fish oil should hold true for humans, too).
Highest weight October 1st, 2011 247.6
Starting weight January 3rd, 2012 227.8
January pounds lost 7.8 = 220
February pounds lost 4.4 = 215.6
March pounds lost 2.6 = 213 (do better in April)
Goal weight 160.4