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Kumquat is a plant species of Fortunella genus in Rutaceae family and generally is the name given to the fruits that known as smallest citrus fruits of this plant. Kumquat, whose homeland is China, is a fruit with round-oval shaped, orange-yellow color. As well as kumquat has five major species, new hybrid fruits are also produced with other citrus fruits. Due to the terpenoids and flavonoids in the peel composition, it can be consumed with its peel, unlike other citrus fruits. Nutritionally, the ratio of dietary fiber and the content of iron, calcium, vitamin A, B2 and C is high. Mostly terpenoids form of the composition of kumquat essential oil and its major terpene compound is d-limonene. 3',5'-Di-C-ß glucopyranosylphloretin is the characteristic phenolic compound of the species of the kumquat. Free radical scavenging activity of kumquat is high and its antioxidant capacity is due to the high content of phenolic compound in its composition. In addition to its antifungal properties, it also has antiviral, antiatherogenic, anti-inflammatory and anticancer effects on health. Kumquat, with its nutritional and phytochemical content, is increasingly becoming in an important position in the field of food and pharmacology. [ABSTRACT FROM AUTHOR]