Vegetarian diet and mental disorders: results from repres. community survey 2012

Even if we were to accept the paper's conclusion, we should take into account that for many people a vegetarian or vegan diet is an ethical choice, because they are concerned about the killing of non-human animals for the purpose of ingesting their carcasses.

If a person lives within a community of perpetrators of an on-going mass-killing of non-human animals (that they themselves may have previously participated in), is it then unreasonable to be more likely to display symptoms of mental disorders, such as anxiety or depression?

Should we not be distressed by awareness of the pain of others?

Claude Etherly, who was piloting Straight Flush, suffered from anxiety and schizophrenia after dropping the bomb. His letter exchange with pacifist philosopher Günther Anders is worth a read[0].

[0]: http://www.history.ucsb.edu/faculty/marcuse/projects/anders/...

I'm a lazy vegetarian, not for animal cruelty reasons but for the bigger, self-preservation issues: artficial pandemic evolution, antibiotic resistance, pollution and climate change contribution.

If you don't get enough bioavailabile vitamin b12, depression is just one of the symptoms. I saw it in the dorms of my university of a few vegans who didn't manage their nutrition. https://en.wikipedia.org/wiki/Vitamin_B12_deficiency