Almost 3 years of being a vegetarian(no dairy too), I know very well that it's the healthiest option. Cruelty to animals was not the reason why I chose to be a vegetarian, it's all about my health. Still, many people need a stronger reason to quit meat eating. Watch this video - if you are not that concerned about your health or the killing of animals, you will still not like what is shown in this video. You don't have to quit meat-eating, but you should know how our chickens, cows and pigs are treated before falling on to our plates. If you are weak-hearted, still you must see, because there is no point in running away from the truth - the truth of what we as human beings do, to other living beings on this "one and only Earth".