The worst part of eating almost exclusively plants is all the BS. At first they said I couldn't build muscle, so I started lifting weights. When I could deadlift 3x my weight and do 15 strict pull-ups my diet was not good enough for endurance. So I did a 3.40 marathon after 6 months of preparation. Then I swam 10k in just over 3h.

But every time I get a cold (with 3 kids in kindergarten and school, viruses are obligatory) it is seen as a weakness of my way of life. I even had a congenital condition blamed on my plant-based diet by more than one person, despite me doing a lot better than just about everyone else with that condition (which is probably just luck, my family have done well as well, while eating a standard diet).