Orange trees are the most cultivated fruit trees in the world. Oranges are a popular fruit because of their natural sweetness, wide variety of types and diversity of uses - from juices and marmalades to face masks and candied orange slices.
--- One orange provides 130 percent of your vitamin C needs for the day, 2 percent of vitamin A needs, 6 percent of calcium and 0 percent of iron.
--- One of the reasons why people get heart disease is because their arteries are blocked due to unhealthy lifestyles and consumption of junk food. Oranges have flavonoids like hesperidin which reduces cholesterol and prevents your arteries from getting blocked. This, in turn protects you from heart attack and various other cardiovascular diseases.
--- Oranges provide potassium, an electrolyte mineral responsible for normal heart function. Potassium works with other electrolytes, including calcium, magnesium and sodium, to carefully maintain fluid levels both in and around cells. Steady fluid balance allows electricity to conduct through your system, making your heart beat. When potassium levels get too low, you may develop an abnormal heart rhythm, known as an arrhythmia. You need 4,700 milligrams of daily potassium, according to the Linus Pauling Institute. A medium, 2 1/2-inch orange offers nearly 240 milligrams of potassium.
--- An orange has over 170 different phytochemicals and more than 60 flavonoids, many of which have been shown to have anti-inflammatory properties and strong antioxidant effects.
--- Oranges are rich in vitamin A, which includes a group of compounds that protect your eyes. Carotenoid compounds of vitamin A, like lutein, beta carotene and zeaxanthin, can help prevent age-related macular degeneration, a condition that leads to blindness. While there is not a specified amount of how much of each carotenoid you should get on a daily basis, vitamin A does have a specific recommendation. Vitamin A allows your eyes to absorb light by keeping membranes surrounding your eyes healthy and also lessens your chances of having night blindness. Men require 900 micrograms of daily vitamin A and women need 700 micrograms, the Office of Dietary Supplements explains. One medium, 2 1/2-inch orange has almost 15 micrograms of vitamin A in addition to high amounts of the other vitamin A-related carotenoids.
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