"The analysis of the respective ages at adoption of a vegetarian diet and onset of a mental disorder showed that the adoption of the vegetarian diet tends to follow the onset of mental disorders."
"CONCLUSIONS:
Vegetarian diet is associated with an elevated risk of mental disorders. However, there was no evidence for a causal role of vegetarian diet in the etiology of mental disorders."
Makes me wonder how many per cent of them became vegetarians as a way of changing to a healthy diet. Mens sana in corpore sano.