It’s true that most of the science indicates that, in general, avoiding high meat consumption, and especially processed meat such as bacon, hot dogs, and sausages, is associated with reduced risk for major diseases like type 2 diabetes, heart disease, cancer, even overall mortality. Not all studies agree on the benefits of an outright vegan diet, though – some (including a 2019 review article) found no risk difference between vegans and omnivores for total heart disease and all-cause mortality risk. A recent study, looking at a large cohort – the EPIC Oxford study – even found a higher incidence of stroke in vegans and vegetarians than meat eaters.

Source: Diet Wars – Why We’ll Still Take Personalized Over Veganuary – Kara Fitzgerald ND Naturopathic Doctor