People just love their labels. Of course, there are many sub-classes for each of these categories, but, I'm just going to stick with the major ones.

• Carnivore - only capable of eating meat
• Omnivore - capable of eating meat and a plant-based diet
• Vegetarian - only eats a plant-based diet. May or may not eat dairy. (this one is a grey area)(hey, why isnt this called Herbivore??)
• Vegan - does not eat anything that involves an animal. And it goes beyond that and is considered a lifestyle, too. They dont use anything in their daily lives that involved an animal...like leather, for example.
• Pescetarian - eats a plant-based diet, dairy, and fish.
• Pollotarian - eats a plant-based diet, dairy, fish, and fowl.

In doing a little research about the whole herbivore vs vegetarian labels, it seems that herbivore and carnivore are more 'scientific' than choice. Those classify an animal that only has the capability of eating a specific diet. So, regardless of personal eating choice, humans would be classified at Omnivores.

A vegan, a doctor, and an Italian walk into a bar. WIthin five minutes, everyone knows it. Oooh, what if one person is all three?? Bonus points if that person mentions all three 'labels' within five minutes!