The Pure Foods Movement was a grass roots effort that called attention to the presence of unhealthy additives in processed food. Prior to 1906, there was no governmental oversight of processed foods and pharmaceutical drugs. Purity, quality, and sanitation were not regulated. Upton Sinclair’s 1906 novel “The Jungle” exposed the unsanitary conditions of Chicago slaughterhouses. The book increased people’s awareness of the unhealthy condition of some foods.