Lol I'm a vegan endurance athlete. I'm not grossly underestimating anything.
People are always looking for shortcuts and gotchas. Just learn to eat a varied and balanced diet of mostly fruit/veg/nuts/plant based protein. It isnt that hard. We let ourselves be convinced it is, or given excuses for why in our special circumstance it is harder, but it really isnt that hard.
No, I'm not being dismissive. I just don't buy into the mantra that food is hard. It isnt. We have every single day of our lives to figure this out and people are more interested in being part of an alt-food lifestyle than just eating a varied diet.