A raisin is a dried grape. Raisins may be eaten raw or used in cooking or baking. Raisins, like all dried fruits, are very good tools for gaining weight in a healthy way since they are full of fructose and glucose and contain a lot of potential energy. They form an ideal part of a diet for athletes or bodybuilders who need a powerful boost of energy or for those who want to put on weight without accumulating unhealthy amounts of cholesterol. Golden raisins, green raisins, and black raisins are favorites of everyone, particularly children. Shop Now.