20 Essential Superfoods For Every Man's Diet

Green Tea

2 calories per cup

Drink 1-3 cups per day

From cancer prevention to weight loss to potentially slowing the development of Alzheimer's, green tea has been shown to help fight almost every major medical ill. "Hot or cold, there's almost nothing better you can drink," says Mohr. Not the teabagging type? Try buying a liquid extract. Drop a bit in water and voila! Instant tea.