Blue/purple fruits and vegetables like blueberries get their color from anthocyanin, a flavonoid that may help preserve brain function as we age. Scientists also are investigating heart-health and anti-cancer effects. Grapes contain resveratrol, a compound with antioxidant and anti-inflammatory properties. Be sure to include blue/purple on your shopping list to get the full range of vitamins, minerals, fiber and phytonutrients you need for better health.