Classified in IARC 2B, which also includes things like pickled vegetables, magnets, coffee, sassafras, styrene, and ginkgo extract. Also aflatoxin M1 (LD50 ~300

Classified in IARC 2B, which also includes things like pickled vegetables, magnets, coffee, sassafras, styrene, and ginkgo extract. Also aflatoxin M1 (LD50 ~300 ug/kg), vanadium(V) oxide (LD50 ~10 mg/kg inhaled), HIV, and nitrogen mustards (chemotherapy drugs that also happen to be classified and stockpiled as chemical weapons). Even the items that CNN picked out, the cancer risk from those is the least of your worries. I won't call the 2B category "useless", since it actually is a list of compounds that might theoretically (but have not been shown to) cause cancer, but, well...