Aunt Phasie, who since the morning had not taken her eyes from the pot where the soupe-aux-choux was simmering, accepted a plateful. But her husband having risen to give her the iron-water forgotten by Flore, a decanter in which a few nails were rusting, she did not touch it.
Émile Zola - La Bête Humaine (1890)
Did people really put a few nails in a decanter of water and drink it as some kind of tonic to ward off anaemia?
Maybe some still do. Maybe it works. Maybe I'll stick to red wine.