New study fom the Netherlands, below [1].
"The consumption of nuts has been associated with a reduction of cancer risk, but only a few studies have examined the effects of nuts on prostate cancer risk. The current study prospectively investigated the association between the consumption of total nuts, tree nuts, peanuts, and peanut butter and the risk of total, advanced, and non-advanced prostate cancer."
"The association between nuts and prostate cancer was evaluated in the Netherlands Cohort Study, which was conducted among 58,279 men aged 55–69 year at baseline."
"For total, advanced, and non-advanced prostate cancer, no significant associations were found for total nuts"
"No significant associations were observed for tree nuts and peanuts for total, advanced, and non-advanced prostate cancer risk."
"Peanut butter consumption was associated with a significantly increased risk {+33%} of non-advanced prostate cancer .., but not with total or advanced prostate cancer."
It should be noted that not all peanut butters are made from 100% peanuts. Some have salt &/or sugar added. Some of the oil may be removed & non-peanut fat added. etc.
in 2016, I posted [2]:
"Foods/Supplements-Vitamins: Peanuts"
also [3]:
"Foods/Supplements-Vitamins: Nuts"
-Patrick
[1] nature.com/articles/s41391-...