Non-Vegitarian food induces a violent feeling in humans.Thats why we see more of muslims and christians involving in violent activites.
Now lot of muslims are converting to vegitarian food because they know that they are committing a crime by killing an animal and eating it. Muslims are also realizing that eating animals food is harmful to thier health.
One fine day the entire world will realize that vegitarianism is the best policy. This is one good thing about Hindus.By principle they are against eating animals.