Lemon
Along with its impressive concentrations of vitamin C, lemon’s flavonoid compounds have been shown to have anti-cancer properties. But lemons may be healthiest in a supporting role: Add a little to your tea, and your body will absorb more of the drink’s healthy antioxidants, finds research from Purdue University. You can even reduce the appearance of age spots by plopping a lemon wedge on them 10 minutes a day for 12 weeks.