Eat Meat, You Die. Eat Anything Else, You Die
Correlation is not necessarily causation and there is more complexity here than meets the simplistic information provided here.
One just has to look at our gut structure (midway between herbivore and carnivore) and our teeth structure (ditto) to draw the inevitable conclusion that homo sapiens is an OMNIVORE. Meat therefore is part of our diet. These types of reports add nothing to the debate except to give the vegans a does of the 'I told you so!'.