According to a representative 2012 study by the International Journal of Behavioral Nutrition and Physical Activity, along with being slimmer, drinking less, and exercising more, vegetarians are also more susceptible than non-vegetarians to mental illness. The study listed some causal mechanisms:
- The biological effects of vegetarianism have an influence on the normal processes of the brain, which increases the chance for potential mental disorders.
Error. Page cannot be displayed. Please contact your service provider for more details. (3)- Development of a mental disorder that increases the likelihood of choosing a vegetarian diet, in which the onset of the disorder would precede the diet itself.
This study was of a wider variety than most other mental health studies regarding veganism and vegetarianism. Other studies were also limited in that they were strictly self-report questionnaires, while no studies to date have used clinical diagnoses of mental disorders based on standard diagnostic interviews.