Radithor Radioactive Water

Say what?

From Hackaday:

Radioactive Water Was Once A (Horrifying) Health Fad

Take a little time to watch the history of Radithor [below], a presentation by Dr. Adam Blumenberg into a quack medicine that was exactly what it said on the label: distilled water containing around 2 micrograms of radium in each bottle (yes, that's a lot.)

It's fascinatingly well-researched, and goes into the technology and societal environment surrounding such a product, which helped play a starring role in the eventual Food, Drug, and Cosmetic Act of 1938.