Jan 01, 2021 · The Food and Agriculture Organization of the United Nations (FAO) and WHO, through the Joint Expert Committee on Food Additives (JECFA), reviewed toxicological and epidemiological information on Cd in the 1970s and set a PTWI for human Cd intake in 1972 that is equivalent to a daily intake of 1 μg Cd kg body weight − 1 which was based on limiting kidney