Men may have another reason to put down their double cheeseburger. According to a recent study published in the Human Reproduction journal, men who eat foods high in fat may be affecting their sperm count
 
Sperm samples from 99 men on a range of diets showed those with the highest total of saturated fat intake had lower semen counts and concentrations. Men in the top third of fat consumption had 43 percent fewer sperm and 38 percent lower sperm concentration than those in the lowest fat intake group. One of the study's co-authors, Jill Attaman, noted that the study was quite small and that a larger study was needed to confirm the results.