Here are teh facts and not the crap of veg. sources:
http://www.straightdope.com/columns/read/674/are-humans-meat-eaters-or-vegetarians-by-nature:
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Like the hard-core carnivores, we have fairly simple digestive systems well suited to the consumption of animal protein, which breaks down quickly. Contrary to what your magazine article says, the human small intestine, at 23 feet, is a little under eight times body length (assuming a mouth-to-anus "body length" of three feet). This is about midway between cats (three times body length), dogs (3-1/2 times), and other well-known meat eaters on the one hand and plant eaters such as cattle (20 to 1) and horses (12 to 1) on the other. This tends to support the idea that we are omnivores.
Herbivores also have a variety of specialized digestive organs capable of breaking down cellulose, ...
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Please study a health science before you post about such themes.
NOLAW