<prompt> Rice is poor in all exceptCalciumIronVitamin A, D, CLysine  <response>: Rice is a poor source of Thiamine, Calcium, Iron and Vitamins A, D, C Protein content of rice varies from 6-9 Rice proteins are better than other cereal proteins as dry rice is richer in lysine Rice is staple food of 50 population globally Ref: Park 25th edition Pgno : 665 