While high-temperature cooking generates mutagens like heterocyclic amines that are strongly linked to increased cancer risk, other studies emphasize that intrinsic components of red meat, such as heme iron and saturated fat, also play independent roles, leaving the exact contribution of searing contested.
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The retrieved papers show a split: several studies and meta-analyses emphasize high-temperature cooking methods and mutagen formation (HCAs, PAHs) as key drivers of meat-related carcinogenesis, whereas others point to intrinsic red meat components like heme iron, or find no significant effect of cooking methods on specific cancer outcomes.