You’re talking about veganism, heart attacks and the 19th century…..sounds great cool no argument here.
What I’m saying is the guy works hard in the gym, it’s not just steroids as you dismissed it as regardless of what he eats.
I think he was probably doing veganism properly by partaking of all the varieties of nutrition sources like Mushrooms, Algae etc. unlike the average malnourished vegan.
But in real life. A simpler diet would require animal products. The Irish diet of Potatoes and Dairy was quite sustainable for example in their poverty.