Every100g of rice contains 6.7g of protein (protein food), 0.9g of fat, 77.6g of carbohydrate, 0.3g of crude fiber, 7mg of calcium (calcium food), 0.36mg of phosphorus/kloc-0, 2.3mg of iron (iron food) and 0/? 0.16mg, vitamin (vitamin food) B2? 0.05 mg, nicotinic acid 1 mg, methionine 125 mg, valine 394 mg, leucine 6 10 mg, isoleucine 25 1 mg, threonine 280 mg, phenylalanine 394 mg, tryptophan 122 mg.

Rice is divided into three categories: indica rice, japonica rice and glutinous rice. Indica rice is made of non-waxy rice, and the rice grains are generally rectangular or slender. According to the harvest season of indica rice, it can be divided into early indica rice and late indica rice. Japonica rice is made of non-waxy japonica rice, and the rice grains are generally oval. According to the harvest season of japonica rice, it can be divided into early japonica rice and late japonica rice. Glutinous rice is made of glutinous rice, which is milky white, opaque, translucent and sticky. There are two kinds of glutinous rice: indica rice and japonica rice. Indica rice is made of indica rice and glutinous rice, and the rice grains are generally rectangular or slender. Japonica rice is made of japonica rice, and the rice grains are generally oval.