Well weighing 360 pounds, like he did before all this, is not healthy, no matter how muscular you are. I had read an article somewhere about his diet being mostly carnivorous when he was that size and then his transition to vegetarianism consisted of lots of eggs, dairy, nuts, and vegetables. Its pretty difficult to stay away from heart disease when you were thay big for that long. Cancer is a little different as it's mostly genetic while onna vegan diet. A whole foods plant based vegan diet can help turn off cancer growth, to an extent in some people, but some are predisposed to it through other factors such as line of work, daily habits such as smoking, and even where you live. There is an article by Dr.
Campbell about a study he did with smokers on vegan diets having nearly normal percentages of development of cancer with people on normal american diets who are non-smokers. Obviously the rates grow exponentially if you smoke and eat a SAD.
I'm not saying it isn't possible that his diet had been an issue, but I tend to not want to like to say "He'd definitely have lived longer if he'd been vegan" because it's always an X factor, perhaps it could have helped, perhaps it was destined due to pre-existing conditions that one day, his heart wouldn't be able to keep going and that would be the end. But yes, being as large as he was, his system did have to work considerably harder than that of most people, and it's fairly obvious based on anyone who has seen MCD over the years, he was not "clean", and steriod use can have negative impact on the heart and may have been a contributing factor. Especially if he used consistently over the past few decades, since he's been a really, really big guy since I first saw him with a bit part in Player's Club back in the mid 90s.
I'm just always reluctant to promote veganism (any type, raw or otherwise) as a guarantee of avoiding medical issues or being able to offer a 100% cure to anything since there are no guarantees, and I'm hesitant to claim that MCD could have been "saved" by it considering that other obvious issues may well have been the main contributing factors that may have taken his life regardless if he had been 100% vegan for a while. Of course, there's always a chance, but I prefer not to speculate too much on the death of another person as we simply can't know the whole story.
Regardless, RIP big man - he will be missed