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After German industry stopped using musk xylene in 1993, its level in breast milk fell about 70% in four years, but the related musk ketone, which was not phased out, did not fall.
Moderate evidence: Cites a BgVV 2000 press release; single-country natural experiment.
Source: Schmeiser 2001, International Journal of Hygiene and Environmental Health Link to this fact
Information, not medical advice. See also: myths we won’t tell you.