juicy and sweet for their concentration of vitamin c, oranges are the perfect treat and give a special touch to many recipes; it is no surprise that they are one of the most popular fruits in the world. the oranges are round citrus fruits with a peel of fine texture and, of course, orange, such as their juicy pulp. usually vary between 5 to 8 centimeters in diameter. oranges are classified into two general categories - sweet and bitter - with the first being the most commonly consumed. the popular varieties of sweet orange (citrus sinensis) include valence orange, bay orange, and jaffa, as well as blood orange, a smaller-sized hybrid species with a more aromatic taste and gradations of red by whole pulp. bitter oranges (citrus aurantium) are often used to make compote or marmalade and its bark serves to season liqueurs such as mariner and cointreau. in addition to the enhancement to the body's nutrition that vitamin c of the orange brings, this fruit is also very rich in fiber. health benefits: infectious diseases; thrombosis; arteriosclerosis; cardiovascular diseases; constipation;