The "lynch pin" study was the subject of a review by a college class, they entered the raw data into a modern computer, I think they said it was entered on punch cards originally. They were shocked to see many errors, errors that made fat look much worse, I heard it on PBS in 2016-17, they even went into who funded the original work insinuating they steered the study, you sure didn't see any retractions though, the original premise still rules most American diets, sad our government sold us out.