As many as 70% of Americans could develop cataracts. But according to doctors, prevention could be as simple as upping your intake of glutathione, beta carotene, lutein and zeaxanthin- antioxidants that are packed into every slice of watermelon. In fact, researchers say watermelon contains more glutathione per bite than 95 other fruits and vegetables. “Like lycopene, these substances neutralize free radicals, but they’re especially good at protecting delicate eye tissues,” explains Perkins-Veazie. And studies show that people who consume them daily are up to seven times less likely to develop cataracts.