Comment by redprince

Mentioned in the article, the Pure Food and Drug Act of 1906 has an interesting history. It came about due to the work of Harvey Washington Wiley who used healthy volunteers to test and document the effects of then used preservatives like borax and formaldehyde. The volunteers were called "The Poison Squad". There's a PBS documentary about them: https://www.dailymotion.com/video/x8jbub8