The scientist, Fred Kummerow, followed up with a study that found troubling amounts of artery-clogging plaque in pigs given a diet heavy in artificial fats. He became a pioneer of trans-fat research, one of the first scientists to assert a link between heart disease and processed foods.
It would be more than three decades before those findings were widely accepted — and five decades before the Food and Drug Administration decided that trans fats should be eliminated from the food supply, as it proposed in a rule issued last month.
Now, Dr. Kummerow (KOO-mer-ow) is still active at age 99, living a few blocks from the university, where he runs a small laboratory. And he continues to come to contrarian conclusions about fat and heart disease.