The results from the comparative toxicity studies in rats suggested that AFM 1 has carcinogenic potency approximately one order of magnitude less than the one of AFB 1 in this species . However, after numerous studies concerning the
possible carcinogenic, teratogenic, genotoxic and immunosuppressive influence, IARC has classified AFM 1 , together with other
aflatoxins, as Group 1 carcinogen . Humans expose
themselves to AFM 1 through endogenous production or by dairy
products intake. The most exposed are infants and young children,
being the major consumers of contaminated milk; however, one
cannot also neglect toxin excretion in the milk of nursing women