> Does it mean that protein intake should be lowered to reduce cancer risk?
without having any clue about the topic, i just googled around, and apparently, this paper from NIH : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3988204/ seem to suggest that it (Low Protein Intake) does help, up to some degree.
The article does not suggest low protein intake, it states that results indicate "high levels of animal proteins promote mortality". I.e. high intake of protein from plants is not associated with increase in mortality.
without having any clue about the topic, i just googled around, and apparently, this paper from NIH : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3988204/ seem to suggest that it (Low Protein Intake) does help, up to some degree.