Favorite case study to support your Bias View

the results of the vegetarian study suggest more strongly (though doesn't prove) that people with anxiety and depressive disorders are more likely to become vegetarian, than that the vegetarian diet is the cause of the disorders) as it stated that the onset of mental health issues preceded the adoption of a vegetarian diet. (there's not enough evidence to prove cause and effect in any direction, but it does beg further questions)

I'd be concerned that people with these disorders (and anxiety in particular) are more likely to be affected by the scaremongering of those who claim all these bad health problems caused my meat. My next research question (if it was me doing the studies) is whether the same is true of other diets where there's a lot of health scaremongering and demonising of foods, e.g. paleo diet, low carb, low fat, etc. It's not hard to imagine how someone who already has an anxiety disorder is more likely to be swayed by such scaremongering. If that's is what's going on (It would take further research to determine if it is), then IMO it's something that people should be aware about.