Coronary heart disease is a chronic inflammatory condition
It is strange that anti-inflammatory drugs don't reduce risk.Which fats are pro- or anti-inflammatory also seems to be an area of active research: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4424767/Nutrition is pretty terrible. It seems to me that laymen have zero chance of getting useful advice out of the research, other than "Eat a varied diet, move regularly".