I don't give two shits about enviornmental measures, how is it by dietary measures?

Oh, right:

https://www.saintlukeskc.org/about/news/research-shows-vegan-diet-leads-nutritional-deficiencies-health-problems-plant-forward

"avoiding all animal foods may lead to nutritional deficiencies in vitamin B12, omega-3, calcium, zinc, iron, magnesium, and high-quality protein.

These deficiencies may be associated with increased risk for certain types of cancer, stroke, bone fractures, preterm birth, and failure to thrive. Avoiding consumption of animal-sourced food may also be related to higher rates of depression and anxiety. Hair loss, weak bones, muscle wasting, skin rashes, hypothyroidism, and anemia are other issues that have been observed in those strictly following a vegan diet."