Golden rice is a variety of rice (Oryza sativa) produced through genetic engineering to biosynthesize the precursors of beta - carotene (pro-vitamin A) in the edible parts of rice, the endosperm. The rice plant can naturally produce beta - carotene, which is carotenoid pigment that occurs in the leaves and is involved in photosynthesis. However, the plant does not normally produce the pigment in the endosperm since photosynthesis does not occur in the endosperm.
Golden rice was developed as a fortified food to be used in areas where there is a shortage of dietary vitamin A. However none of its variety is currently available for human consumption.