Hi, I am a vegetarian.  It's hard but worth it.
Vegetarianism is the practice of abstaining from the consumption of meat 
Do you think eating fish is still considered vegetarianism?
It may also include abstention from by products of animals slaughter 
What is a common non-animal protein?
Vegetarianism may be adopted for various reasons 
Are eggs considered to be vegetarian?
Many people object to eating meat out of respect for sentient life
Yes, and many do it for the health benefits.
Such ethical motivations have been codified under various religious beliefs