Various studies say no, a vegan diet gives you no benefit. Coronary Artery Disease is based on your genetics. You can eat like a rabbit, and if you have the killer gene, you will die, the same as anyone else. The one thing that DOES improve outcomes for those with that gene is living a very active life. The more active, the better. Hard core sports is the best. Build up secondary capillaries around the heart and you might survive long enough to get to a hospital.
Among the Western populations studied, evidence weakly demonstrates associations between vegan diets and risk of CVDs, with the direction of associations varying with the specific CVD outcome tested. However, more high-quality research on this topic is needed. This study was registered at...
pubmed.ncbi.nlm.nih.gov