If you’re craving chocolate you should be ok caving for a bit of dark chocolate. Researchers at University of the Incarnate Word Rosenberg School of Optometry in San Antonio looked at 30 adults and gave each a 1.65-ounce bar of 72% Cacao Dark Chocolate and a 1.4-ounce bar of Trader Joe’s Crisp Rice Milk Chocolate in separate sessions at least three days apart. Two hours after eating each bar, participants had their vision tested. The results showed more than 70 percent of people scored significantly higher on the vision tests after eating the dark chocolate compared to when they took the test after eating the milk chocolate. It’s believed the organic compound flavanol, which is found in fruits and vegetables and also cacao beans, improves blood flow to the brain and cardiovascular system by reducing inflammation. Study author and optometrist Dr. Jeff Rabin adds that better blood flow to the brain could be responsible for the improvement in vision, but that more research is needed to figure out precisely how eating the chocolate helps vision.