The Orange is the fruit of a tall evergreen tree (up to 10 meters high) and it is called a hesperidium – a type of berry. The plant in originally from Southeast Asia and has a tasty orange flesh, covered by a thick skin also orange. Although all the citrus fruits are sour, oranges have two varieties: bitter and sweet. Bitter oranges have been successfully replaced in the 11th century by the sweet ones. There are many other orange varieties. Navel orange, Valencia orange or Blood Orange are the most popular.
The Orange is very appreciated in many industries. Orange oils are used in cosmetics, aromatherapy, or flavoring foods. Due to its high content of s-Lemonene (which is used in hand cleaning and furniture polish) it may cause cancer to rats and it is considered very toxic in many countries. Orange juice is one on the list of commodities traded on the New York Board of Trade. This is a very nutritious fruit. Only 100 grams of orange flesh contains 75% of the recommended daily intake of vitamin C , almost 30% of vitamin B, magnesium, potassium, and sugars. The skin is dried and used for making a great tea, a natural cure for colds. Flavanone and herperidine have benefic effects on decreasing blood pressure and cholesterol. Also, the British Journal of Nutrition stated that a glass of orange juice may be more efficient and healthier than vitamin C alone.