I've been vegan for nearly a year now.
There's no ethical consumption under capitalism, but personally I feel happier not contributing to the animal agriculture industry.
Modern animal agriculture (as well as the crops grown to feed animals) produces more emissions than all modes of transport combined and is so incredibly damaging to the environment.
Not to mention the extent of animal abuse/lack of regulation in abattoirs etc, at least here is Australia.
I eat a lot of beans, legumes, pasta, fresh vegetables, fruit, nuts, bread, healthy oils. Plus tons of fast-food places and supermarkets have vegan options now. I'm still learning a lot about the nutrition side of things but I'm feeling pretty happy with where I'm at.