2 links have been added on this idea.
  1. “On June 18, 2018, U.S. food manufacturers will be banned from using partially hydrogenated oils—known as trans fats The ban is the culmination of a decades-long effort to eliminate these harmful oils Partially hydrogenated oils were first introduced commercially in the early 1900s, and throughout the 20th century they become a mainstay in American foods…”