Vegetarians are more likely to be depressed than meat eaters, a new study has suggested.
OK, fair enough, the contemplation of a life without bacon would indeed depress.
The study itself tries to defend against this idea:
Those with mental health conditions may adopt a plant-based diet due to the perception that it is healthier
That is, the defence against the idea that veggie-dom makes you nuts is that those going nuts embrace veggie-dom.
Sure, causality matters but it’s still, whichever way, a useful social marker for the rest of us, isn’t it?