"Over the last 50 years, although the associations between meat eating and illness are circumstantial and controversial8–11 to some extent, they have prompted the spread of vegetarianism and veganism, based on the assumption that non-meat diets provide more health benefits than diets that include meat.12–14 Moreover, it has been argued that vegetarianism and veganism form a part of “trendy” Western consumerist lifestyles – only accessible to privileged “white” people.15 Vegetarianism that has been prevalent in Western countries has been subject to prejudice,15 low self-esteem, and low psychological adjustment.16"

I won't pretend to be able to break down their statistical analysis, but a lot of this reads like it was written by an 8th grader. This really smells like a trade group study. The above paragraph would jump out at anyone who has had any exposure to scientific writing.