Also named Goa apple or Coromandel currant, the starfruit or carambola originally comes from Malaysia and Indonesia. Records mention its introduction in Reunion Island by the botanist Charles-Joseph-Alphonse Bernier in the 19th century.
The fruit has usually 5 distinctive ridges running down its sides but may vary from 4 to 8 ridges. The fruit is about 5 to 15 centimeters in length and is an oval shape. Starfruit pulp is crunchy, firm, and juicy. Fiberless, its texture is similar to that of grapes. When cut in cross-section, it resembles a star, hence its name. The entire fruit is edible but may also be used in cooking, can be made into relishes, preserves, and juice drinks.
Star fruit is rich in antioxidants, potassium, and vitamin C; and low in sugar, sodium, and acid. It is also a potent source of both primary and secondary polyphenolic antioxidants.
Due to the presence of caramboxin in the fruit, consumption of starfruit should however be avoided by persons suffering from renal insufficiency and/or those under dialysis.