Our grannies house had iron pipes.
Yep, you guessed it. The water tasted like crap and every sink, tub and toilet had an streaking, reddish brown rust stain. Got so bad we stated filling old gallon milk jugs for her to drink, cook with.
And I’ve heard of onion tainted milk cows.
Onion milk needed lots of Nestle QUIK added.
It’s a real problem for pasture grazing dairy cows.
Probably doesn’t happen with the current industrial dairy operations.