Orange is a citrus fruit of the same family as grapefruit, tangerine or lemon. These fruits are medium size, about 100-150 grams per piece. The main difference presented with tangerines, is that tangerine skin is much looser and easier to peel.
Oranges have multiple nutrients, are rich in dietary fibre, low in calories and contain no fat or cholesterol. Fibre, although is not a nutrient it has many benefits: it acts as a natural laxative helping regulate intestinal transit, protects the mucosa of the colon reducing their exposure to toxic and reduces reabsorption of cholesterol avoiding passing the blood. In addition, it also has significant amounts of citric acid, which helps dissolve kidney stones.
As for nutrients, these fruits are especially rich in vitamin c: 100 grams of oranges provide two thirds parts of the recommended daily intake. This vitamin is a powerful antioxidant that, together with other phytochemicals containing, delay cellular aging, it promotes the action of the immune system and has anti-inflammatory effects. Also, they are containing acceptable amounts of folic acid, very necessary for the proper development of the embryo in the first trimester; potassium, necessary for proper muscular contraction, protects against strokes and regulating blood pressure.