I think you can do either, and I should have added that to my post. Veganism isn't a health diet straight out; it's a political diet. But you can be very health (lots of plant, plant carbs and very little fat) or very unhealthy (nothing but Oreo cookies).

I agree with the poster that a high carb/low fat diet can also be pretty healthy, but you pretty much do have to do one or the other.

Both approaches are difficult, because the food supply/industry isn't really setup for it. There are a ton of unhealthy vegan meals in vegan restaurants as well, where they load up on refined sugar and not as many plants.

They keto stuff isn't madness though. It's just a different approach and it works for some people.