Rice is popular and often consumed plant (a staple food for more than 50% of the human population). It is estimated that rice provides 1/5 of the calories intake in the world. Besides high carbohydrate level, rice is rich in minerals and vitamin B group. Genetically modified rice became rich in another element - beta-carotene, a precursor of vitamin A. Endosperm (edible part of the rice) is site of beta-carotene production, thanks to newly incorporated psy (daffodil derived) and crtl (Erwinia uredovora derived) genes. Expression of both genes is under control of the endosperm specific promoter. Lycopene is the end product of genetically modified plant but enzymes located in the endosperm transform lycopene to beta-carotene that is responsible for the yellow color of the modified rice. Dose of vitamin A and its bioavailability is high. One cup of golden rice per day satisfies daily needs for vitamin A. A lot of organizations recognized the potential golden rice could have for the world regions that are struggling with vitamin A deficiency and supported financially whole project (Bill Gates and Hellen Keller International organization, for example). It’s estimated that golden rice could become available for worldwide use in 2013.