https://www.tandfonline.com/doi/full/10.1080/10408398.2020.1741505Including depression, anxiety and self-harm.
Makes sense, since purposefully avoiding meat is itself a form of self-harm.
Interestingly, AV's instant-cure for depression was high meat, some of his followers even going as far as to engage in coprophagy for this purpose. Vegan food is notoriously lacking in bacteria and e.coli in particular.