As January stretches on and the midwinter blahs kick in, consider a healthy way to perk up your day — Chilean cherries.Although cherries are available domestically in the United States in the summer months, in the winter they bring a much-needed burst of color and flavor. Winter cherries come from the Southern Hemisphere, primarily from Chile in South America. Chile’s diverse climate lends itself to growing many types of fruit, including cherries.Cherries not only taste great, they also pack a powerful nutritional punch. Chilean cherries are rich in antioxidants, as well as vitamin C, which is important to maintaining a healthy immune system.Chilean cherries also contain vitamins A and K, along with potassium, magnesium and even some of your recommended daily amount of calcium.