Study: Walnuts Improve Sperm Quality

Researchers at UCLA say men who want to improve the quality of their sperm should eat two handfuls of walnuts daily.

The participants, 117 men ages 21-35, were divided into two groups. During the 12-week study one group ate 75 grams of walnuts and the other group avoided nuts.

"We found a significant improvement in sperm parameters in the group that consumed the walnuts. The men who ate no tree nuts saw no change," says lead author Wendie Robbins.