Study finds alarming levels of ‘forever chemicals’ in US mothers’ breast milk

Toxic chemicals known as PFAS found in all 50 samples tested at levels nearly 2,000 times what is considered safe in drinking water

A new study that checked American women's breast milk for PFAS contamination detected the toxic chemical in all 50 samples tested, and at levels nearly 2,000 times higher than the level some public health advocates advise is safe for drinking water.

The findings are cause for concern" and highlight a potential threat to newborns' health, the study's authors say.