URL: Vegetarians May Be Predisposed to Hating Meat - Gene Found That Detects Sensitivity to Pork - Delish.comDeciding if you should practice vegetarianism may all come down to a smell test. Scientists at Duke University have discovered that those who skip meat may have genes that cause them to find the animal odor more overwhelming than others.
So apparently a study has been done which suggests some vegetarians could put their meat-hating down to genetics. Pretty interesting, apparently some people are predisposed to hate the smell of meat, and the smell of pork can be almost intolerable to them.
While I find this study interesting I don't think it would be very accurate for most vegetarians. All the vegetarians I know besides two are vegetarian due to ethical/animal rights reasons. I only know two who are because they just don't like meat.
For me I think it could almost be half/half. I'm vegetarian for ethical and personal health reasons, yet at the same time when I am in a butcher shop I feel almost physically ill from the smell. I can't stay in there for too long. So maybe there is an aspect of smell in there.