Your heart and brain are major beneficiaries of a nutritious, plant-based diet. But they haven’t cornered the market. Your eyes feel the love too — and it’s not all about carrots! New research suggests that getting plenty of vitamin C may help to slow the progression of cataracts, the leading cause of blindness in older adults. In a population study, researchers looked at the eating habits of adult identical twins — since twins share the same DNA, studying them is a great way to observe the influence of lifestyle as separate from genetics. Participants who reported having eaten more vitamin-C-rich foods had a reduced risk of cataract progression. We already know that vitamin C may reduce your risk of macular degeneration (another cause of blindness), support wound healing, and protect you from the harmful effects of free radicals. (We love nutritional overachievers!) So load up on foods such as citrus fruits, kiwi, broccoli, green peppers, and tomatoes — and be sure to eat some raw or lightly cooked, since vitamin C breaks down when exposed to heat. Don’t substitute supplements — these did not significantly affect cataract progression in the study. Besides, vitamin-C-rich foods are way more delicious than a pill.