This assessment focuses on the concentrations of some chemicals presen
t in the Agaricus bisporus mushroom, the cancer-inducing doses of thes
e chemicals or mushroom used in the animal experiments, the total amou
nts of these chemicals or mushroom needed to induce cancer in these mi
ce, and the estimated total amounts of these chemicals or mushroom nee
ded to induce cancer in humans. By adding the estimated amounts of che
micals needed to induce cancer and by comparing it with the amount of
raw mushroom needed to induce the same effect, it becomes obvious that
we have accounted for less than 2% of the carcinogenic components of
the Agaricus bisporus mushroom. Since some unavailable data handicappe
d this assessment, it should be regarded as tentative and subject to f
urther adjustment