First, I want to start by saying I am not a vegetarian. I don’t believe animals are creatures equal to humans deserving the same treatment. I am a Christian and I believe God gave us dominion over them and offered them for our subsistence after the Flood. When Noah and his family left the ark, God said to them: Be fruitful and increase in number and fill the earth. The fear and dread of you will fall on all the beasts of the earth, and on all the birds in the sky, on every creature that moves along the ground, and on all the fish in the sea; they are given into your hands. Everything that lives and moves about will be food for you. Just as I gave you the green plants, I now give you everything. (Genesis 9:2-3). The climate had changed drastically and plant food was going to be sparse. But it might not be optimal for man to eat animals, it might be a second best when we have access to vegetation. And I am not even talking about conventional meat, there is a host of other problems with industrially raised meat that I will not mention here. I am talking about possible problems with eating organic, humanely raised animals:
1- Meat is low in fiber and takes longer to digest than plant food. In transit through the intestines, it can putrify and produce toxins. We secrete less hydrochloric acid than cats for example, and our intestines are long compare to theirs, which allow them the rapid expulsion of their waste products.
2- Although research about eating habits is not perfectly reliable, since so many factors need to be taken into consideration about the subjects and it’s impossible to eliminate all variables, there is a body of evidence suggesting that meat consumption can cause inflammation and, in some forms, cause cancer.
3- Animals store more toxins than plants because they have a higher fat content.
4- One study showed that meat consumption increased allergies (this page presents an extensive list of studies pointing to the risk associated with the consumption of meat).
5- Eliminating meat from one’s diet will improve his or her gut’s microbiome in a matter of days.
6- A plant based diet will provide just enough protein. Eating to much protein is easy to do when consuming meat and too much protein is associated with weight gain, diabetes, inflammation and cancer.
7- Good quality meat is expensive and there is a reason for the fact that eating meat used to be for the more wealthy people. It should be considered as an indulgence.
I think a good summary here might be: Everything is permissible for me but not everything is beneficial.” (1 Cor. 6:12)