How did industrial seed oils go from being classified as “toxic waste” to enjoying the title of “heart healthy” fats?

In the late 1940s, a small group of cardiologists who were members of the still somewhat new American Heart Association received a $1.5 million donation from Procter & Gamble; thanks to this generous infusion of cash from the makers of Crisco, the AHA now had sufficient funding to grow its national profile as a physician’s organization dedicated to heart health. It also were quick to endorse industrial seed oils, more kindly referred to by now as “vegetable oils,” as a healthier alternative to traditional animal fats. See the full story here-https://chriskresser.com/how-industrial-seed-oils-are-making-us-sick/