Do you know that vegetarianism dates back to civilizations of ancient India and ancient Greece?
No way! I'm curious on this now... 
Yes it is true, it's values are based on the  practice of voluntary non-consumption of the flesh of any animal 
I personally like meat, but power to them if they can do it! 
if we look very well we will see that practice  was done amongst a significant number of people concern ancient India and the ancient Greek civilizations in southern Italy and Greece.