1. Religious point of view: Every religion has it as an allowed option in our diets.
2. Scientific point of view: Our bodies have evolved to not only have meat as part of our natural diet, but its required otherwise you could go blind or have many other deficiencies as certain things ONLY come from meat protein. Furthermore, a simple study of our ancestors proves that the species with healthy amounts of meat in its diet had the biggest evolutionary changes to larger brains... obviously an important part our current physiology. (If you try to argue a case for Vegans, then you don't know shit as they are required to take vitamins to make up for what is lost in not eating any meat products and taking medicines is not natural... just eat an appropriate meal.)
3. Nature point of view: There is simply no case on this planet (and probably others we'll eventually find) where there exists entire biosphere where one species does not eats/consumes another. Its simply the natural factor of life. Its also a very important driver of evolution as well as population control.







