Carcinogenicity of consumption of red meat and processed meat: A review of scientific news since the IARC decision.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing post-IARC literature without a systematic review or meta-analytic methodology.
PubMed 28450127 · doi:10.1016/j.fct.2017.04.028
What was done
The author reviewed epidemiological studies and reviews published following the October 2015 International Agency for Research on Cancer (IARC) decision regarding the carcinogenicity of red meat ("probably carcinogenic to humans") and processed meat ("carcinogenic to humans"). The review evaluates the updated evidence and identifies unresolved research gaps.
What was found
The abstract provides no quantitative data or risk estimates. It qualitatively reports that new epidemiological studies and reviews published since the 2015 IARC evaluation consistently support the original conclusions regarding cancer risk. Identified knowledge gaps include the precise biological mechanisms for colorectal and other cancers, the distinct role of pre-existing versus cooking-induced carcinogens, and the specific risk profiles of white meat and poultry.
Why it matters
It reaffirms that post-2015 literature broadly aligns with the IARC meat carcinogenicity classification while highlighting specific research priorities regarding cooking methods and alternative meat types.
Limits
The abstract describes a narrative review without explicit systematic search parameters, quantitative data, or sample sizes. Causality cannot be established, and the paper relies on broad summaries rather than presenting specific effect sizes or hazard ratios.
Cited by
- supports Meat consumption has been implicated as a potential carcinogen, particularly for colorectal cancer.