I used to be a vegetarian, but now am a vegan.  What are your food preferences?
I eat Ketogenic, I know vegetarianism has its roots in Ancient India and Greece
I know a little about vegetarians in India, but not in Greece.  What is the Greek history?
It is basically the same no animal or animal products, one probably got iy from the other truthfully
Yes, but which from which?  Both claim such deep historical roots.  I'm betting the Indians started it.  What do you think?
I am not really sure there are claims that history also includes Southern Italy
Hmmm ... that's interesting.  Vegetarianism can be either for health or spiritual reasons.  I started for the latter reason and then became vegan for health reasons. I wonder how healthy it really is.
Either way all of the early vegetarians had the same concept, the idea of non violence toward animals
An early form of PETA.  I guess it's just an individual thing now.  At least there are more restaurants that vegans and vegetarians can frequent.
banned the consumption of meat for ascetic reasons, but none of them abstained from the consumption of fish; these monks were not vegetarians, but some were pescetarians. Vegetarianism was to reemerge somewhat in Europe during the Renaissance and became a more widespread practice during the 19th and 20th centuries. The figures for the percentage of the Western world which is vegetarian varies between 0.5% and 4% per Mintel data in September 2006. 
Ancient.
Ancient Indian subcontinent.
Ancient Indian subcontinent Early Jainism and Buddhism.
Jain and Buddhist sources show
Jewish vegetarianism
Jewish vegetarianism is a commitment to vegetarianism that is connected to Judaism, Jewish ethics or Jewish identity. Jewish vegetarians often cite Jewish principles regarding animal welfare, environmental ethics, moral character, and health as reasons for adopting a vegetarian or vegan diet.
Ancient and Medieval.
Genesis 1:29 states "And God said: Behold, I have given you every herb yielding seed which is upon the face of all the earth, and every tree that has seed-yielding fruit—to you it shall be for