Itâ€™s a well-known fact that oranges are an excellent source of Vitamin C as well. One medium sized orange can provide enough Vitamin C to meet your recommended daily dose. They are also full of antioxidants, vitamin A and folate. Because of its sweet, juicy, delicious taste, the Cara Cara navel oranges are best for eating fresh out of hand. Navels are also a great, healthy way to add flavor to your favorite salads, entrees, and desserts. The Cara Cara is available from December through April.