In a 26-week study at the University of Copenhagen, a group of overweight subjects managed to lose an average of three and a half kilos after 12 weeks on the new Nordic diet.which was more than twice as much as dieters on standard portion-controlled meal plans lost. Although researchers are yet to pinpoint the exact ingredient that worked the wonder, here is what they recommend eating if you want to trim down. Fish, nuts, legume, fruits, berries, raw vegetables like cabbage, game meat and Nordic starches such as oats are what you should be concentrating on. Another staple of the diet is the classic theory of consuming in moderation and not starvation. Move over Atkins, Vikings are the new dieting gurus.