The claim that heme iron is toxic due to N-nitroso compound formation is overstated and not clearly discussed.

“the N nitro so thing is is not as clearly discussed as it should be the heme iron thing is way overdone and furthermore there's some really fascinating papers that I want to share with you guys the effects of white versus red meat on endogenous and nitro station in the human colon and further evidence of dose response this study showed that fiber did not change the level of an nitroso compounds again we're looking at ones that are primarily not dangerous and that white meat and red meat form the same amount”