Got a spare tire attached to your midsection, guys? Want it gone? Then try green tea. In one recent study, extracts from the beverage helped men burn 17 percent more fat during a 30-minute cardio workout.

Green tea is a sort of metabolism booster. It's not clear exactly why, but researchers suspect that something in the healthy drink makes fat turn to fuel during exercise. It doesn't happen without the exercise, though, because the only way to shrink a spare tire is to lose weight. Tea just helps you do it.

Tea helps in other areas too. Check out these six reasons to go green.