I am very much in the valley of despair on this manner, but for me individually (and food is indeed very individual), meat consumption leads to a much greater quality of life, with perceived health benefits.

I went fully carnivore and it lead to various health improvements. While I moved away from it due to my foodie tendencies, I currently do consume mainly animal products.

I plan on doing a vegan experiment as well, but I am just not getting convinced by the vegans I listen to, so I need to do more research. As it stands, I believe eating meat that grew naturally (e.g grass fed beef as compared factory farming) is more healthy and sustainable than veganism.