 He cited the increased use of refined sugar as a particular threat to good health, an idea scoffed at during his lifetime and decades later, but an observation supported by an exhaustive study published in the Journal of the American Medical Association in 2014 and reported by the Harvard Heart Magazine that year and in 2016.In 1947, Robinson became one of the earliest to warn of the dangers of using the pesticide DDT in agriculture.This was a radical view at the time, especially in St. Louis, Michigan.