If you believe in the Bible then you may know that written in it people did not eat animals before the Earth's flood. That did not happen until roughly 1650 years. So for that amount of time people got their nutrition and protein needs on Plants alone. It's also believed that originally mankind was created to live on plants alone and not eat the animals. There's discrepancies over why God decided to have man eat the animals After the flood. But for the sake of argument let's decide that God created man to only eat a plant-based diet. If the Bible version of life is true then we weren't created to need any of our nutrition from meat. In closing , again if all this is true then perhaps the fuel our bodies needs 2 operate optimally are from plants alone.

I make no claims 2 the Bible being true or not. However if it was it would be something to really think about when it came to the subject of veganism.