Walnuts

Walnuts

A couple of handfuls of walnuts a day may help prevent prostate cancer. Nuts of all kinds are displayed for sale at a Uighur market in China. (UPI Photo/Stephen Shaver)

A couple of handfuls of walnuts a day may help prevent prostate cancer. Nuts of all kinds are displayed for sale at a Uighur market in China. (UPI Photo/Stephen Shaver)