Since the dawn of time, human beings have been known as meat-eaters. After all, prehistoric cave drawings depict hunters hurling spears at bulky beasts, not slaying a field of vegetables to fill a salad bowl. Today, the average American consumes about 225 pounds of meat each year.

Implicit in the carnage is the idea that eating meat is somehow more "manly." Studies have even been conducted on food and gender roles. Evolution must be slow, though, because in some men's minds, the ancient stereotype remains: Meat equals masculinity.

"I think the rationale, at least among men, is that you need to be consuming a lot of protein and you need to be consuming animal-based protein and meat products to maintain testosterone levels," said