A bowl. Generally, each 100g of rice contains 1 16.5 kcal, while a bowl of rice is about 200g, so the calorie of a bowl of rice is equal to 2× 1 16.5 kcal =233 kcal. The main component of rice is carbohydrate, and the protein in rice is mainly protamine, and the composition of amino acids is relatively complete, which is easy for human body to digest and absorb. The contents of minerals, dietary fiber and B vitamins (especially vitamin B 1) in brown rice are higher than those in polished rice, but the content of lysine in rice is lower.