Our body has needs and creation, God, Truth (whatever one wishes to call it ) has provided for those needs, be it in the form of vegetable or animal.
It is interesting that in the wild world, which everyone thinks is so beautiful and peaceful, there is much less empathy for how something dies. Its, no matter what it is, existence is dependent on the death of something else, and something else will ultimately use it for nourishment somewhere along the way. I think, in many ways, nature is much more brutal than most of mankind. At least most people look for ways to provide for the least painful dispatch method. Even people sent to death row are dispatched in humane ways for the most part.
I am at peace on my farm, and I eat from my garden and from amongst my animals, clean healthy food that tastes delicious. For all of that I am thankful and willing.