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Grapes are a great source of anthocyanin, a phytonutrient with anti-inflammatory benefits – so long as they're dark varieties and seeded. The same rule applies to juices (Concord grapes are the best) and raisins. Note, though, that the most common raisin is made from pale Thomson grapes, which means their already low nutrient levels have been further depleted in the sun-drying process. Golden raisins are one step better, but your best bet instead is to go with currants, made from Black Corinth grapes, which carry more antioxidants than any other raisin.