Though organic foods tend to be more costly, men and women looking to shed a few extra pounds might find it's worth a few extra dollars to buy organic dairy rather than more traditional and less expensive alternatives. In a study published in the Journal of Dairy Science, researchers found that grass-fed cows produced milk containing 500 percent more conjugated linoleic acid, or CLA, than cows that were fed grain. That's a significant distinction for men and women looking to trim down, as CLA can help them burn more fat and gain muscle. Organic dairy products include cheese, milk and yogurt. Organic milk also has been shown to contain roughly 70 percent more omega-3 fatty acids than traditional milk. That, too, is important to note, as omega-3 fats have been shown to help prevent heart disease and stroke, two potentially deadly conditions that overweight men and women may be especially susceptible to.