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The orange is the most commonly grown tree fruit in the world! It is thought to have originated in Southeast Asia but today, the top two producers are Brazil and the U.S. (with American oranges mostly coming from Florida). (Read more about oranges on Wikipedia.)

You may notice that Florida citrus has a slightly green color from time to time. Even though this fruit is sweet and completely ripe, some oranges go through a natural process called “regreening” in warm weather. When the fruit ripens on the tree, it turns a bright orange color, as usual. But the warm temperatures of the season may make the skin reabsorb chlorophyll as it hangs on the tree, causing that greenish tint. Don't let this color shift fool you- it is perfectly ripe and often times sweeter, as the warmer temperatures elevate the fruit sugar content in the orange.

Oranges are one of the best sources of vitamin C, with one fruit providing about 116% of the recommended daily value. Vitamin C is a natural antioxidant that helps control infections, as well as maintain healthy bones, teeth, and blood vessels. (See more orange nutrition facts on 

Oranges keep well in the refrigerator. Oranges can also be stored at room temperature, though they will not last as long. They also yield more juice when stored at room temperature.