July 5th, 2024

WHO says talc is 'probably' cancer-causing

The World Health Organization's cancer agency classified talc as "probably carcinogenic" due to limited evidence linking it to ovarian cancer. Johnson & Johnson withdrew talcum-based products amid safety concerns. Acrylonitrile was also classified as "carcinogenic to humans."

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WHO says talc is 'probably' cancer-causing

The World Health Organization's cancer agency classified talc as "probably carcinogenic" for humans due to limited evidence linking it to ovarian cancer in humans and cancer in rats. Talc, a naturally occurring mineral used in baby powder and cosmetics, may show carcinogenic signs in human cells. Studies suggest an increase in ovarian cancer rates in women using talc on their genitals, but contamination with asbestos complicates the findings. The agency emphasized that talc's role in cancer couldn't be definitively established. Johnson & Johnson withdrew its talcum-based products from the North American market in 2020 amid safety concerns. Despite recent settlements over talc-related allegations, studies have not consistently linked talc use to ovarian cancer risk. Additionally, the IARC classified acrylonitrile, a compound used in various consumer products, as "carcinogenic to humans" based on evidence linking it to lung cancer. The agency's evaluation aims to assess potential cancer risks associated with substances, without proving direct causation.

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By @shric - 5 months
There was a recent (August 2023) The Studies Show episode[1] on WHO's cancer list. It goes in to why these lists are incredibly misleading.

My own mother died of Ovarian Cancer at age 40 and used talc. I'm not confidence for a second there is sufficient evidence to even hint at causality.

[1] https://www.thestudiesshowpod.com/p/episode-3-aspartame