A public health intervention in North Karelia, Finland, reduced saturated fat intake and blood pressure, resulting in an 84% reduction in overall mortality over two decades.

“they took their saturated fat intake down from 23 percent down to like 10 or something like you know somewhere around 10 percent they had an 84 reduction in uh overall mortality over the next you know decade or two and it's still ongoing they attributed 40 percent of that to the reduction in saturated fat intake and 20 of that to the reduction in blood pressure”