Specifically, the authors noted in this ongoing observational study that the rate of myocardial infarctions declined by three-fourths or 74% due to lower non-HDL cholesterol (34%), higher HDL cholesterol (17%), lower blood pressure (13%), and less smoking (6%). Fruit & vegetable intake did not make a statistically significant (7%) contribution to the decline. However, an increase in body mass index undid much of the benefit by at least 11%.
The point of this post is that gaining weight, most likely fat, can undo much of the good that we achieve in preventing heart disease. Let's make sure our efforts aren't corrupted.