Humans were vegetarians from the creation till the flood (around 1656 years), GOD said in (Genesis 1:29-30) that all creatures including humans and animals will have green plant for food.
Only after the flood GOD gave humanity permission to eat meat as indicated in (Genesis 9:3), the reasons are not clear for me but maybe because of the lack of available plants to feed humans after that flood.
Moreover, in the desert of Sinai (Numbers 11) the Israelites started a food riot requesting meat to eat instead of their daily heavenly vegetarian Manna, GOD got angry for such a request and indeed He gave them meat per their request but also he sent them a severe plague while they were eating that meat.
However, in the prophecy of (Isaiah 11:6-9) we see that the lion will eat straw like the ox, that indicates that things will be again similar to the pre-flood era.
Now some might say that JESUS had consumed meat, but probably that could be “invisible meat” see (Tobit 12:19), to place Himself in solidarity with the poor of this earthy world and sending a message that eating meat is not a sin.
But after His crucifixion, I personally think no more souls should be wasted on anything including our food (as possible as we can), I think the less of the animal blood in a person the more pure the soul becomes.
May the LORD be with all those pure and kind in spirit…