That's a bold claim, do you have a source to back that up?
https://aapse.wildapricot.org/resources/Documents/AAPSE%20Pu...
Still, I wouldn't want lead pipes.
A bit of a stretch to call it intentionally adding lead to food, but in practice, not that different.
[1] https://www.congress.gov/bill/100th-congress/senate-bill/261...