From www.wisegeek.com:
"A superfood is a food rich in phytochemicals, which are special chemicals that have been noted to have disease-fighting properties. Phytochemicals can reduce the risk of certain forms of cancer, reduce inflammation, strengthen the immune system, or in some other way contribute to a person being healthier. When foods are high in these phytochemicals, they may be eaten not only because they taste good, but because they are good for you too."
 
Here is a list of 10 superfoods for men
 
Beets
Cabbage
Guave
Swiss Chard - green leafy vegetable, like mustard greens
Cinnamon
Purslane - another leaf
Pomegranite juice
Goji Berries - looks like a very small tomato
Dried Plums
Pumpkin Seeds