Newest fertility treatment: A diet

The latest in fertility treatment might come down to a simple diet -- for both men and women.

Researchers reported last week that obese men tend to make less semen and have abnormal sperm. This finding adds to recent research showing that obese women are more likely to be infertile.

There's nothing too scientific about the implication of this research. It's simple: Men and women who wish to conceive should first achieve an ideal body weight.