I’m minded of something Leonardo Da Vinci said, “Our lives are sustained on the deaths of others.” If I remember correctly, he was speaking about soldiers dying to protect civilians, but there’s a broader context. If you wear cotton cloth, the cotton had to be harvested from a plant, causing it to bleed sap and eventually die. Even if you eat only vegetables, harvesting your food still caused some suffering to the plant, or killed it: Pull up a carrot? It’s going to die. Harvest wheat? cuts the heads off and kills it. Pluck a tomato from the vine or an apple from a tree? It’s going to hurt the plant a little bit, though it will heal over.
I’m not a big fan of red meat (I can’t remember the last time I had any), but I’m not going to slam someone for liking a nice, juicy steak.
EDITED TO ADD: A question that always bugs me in these kinds of discussion: How come it’s wrongwrongwrong for humans to eat meat, but no one goes after lions or tigers for hunting wildebeasts or deer?
Plants do not have central nervous systems. They do not experience the world or feel pain as mammals do.
Lion, tigers, raptors are carnivores. They digest food differently than herbivores and their systems are designed for this purpose. They are also needed in the natural world to cull the weak and sick. Vultures have special enzymes to digest rotting meat. They can eat a carcass of an animal that has died from a virus, and not get sick themselves. By eating that carcass they save the lives of other animals that could come along and eat it and get sick and die.
Each species is designed to live and be nourished in specific ways.
Carnivores all have killing aparatus: claws, sharp pointy teeth, talons, etc. Carnivores have specific meat digesting enzymes in their stomachs. They also have short intestines.
Herbivores have flat teeth and long intestines for digesting fibrous plant materials that require longer digestion times. They also have specific enzymes for digesting plant material.
Omnivores are all descendants of carnivorous animals whose bodies have adapted to also digest plant materials. All omnivores possess the traits of carnivores in addition to the additional abilities of digesting vegetation. Examples of omnivores include: bear, raccoon, etc.
This is in the animal world. Humans are considered to be omnivores by social adaptation, that is, they did not physically evolve from the carnivorous state–they do not possess the bodily characteristics of carnivores. They do not have the talons, sharp teeth, or claws. Humans have long intestines, etc. Humans are not omnivores by physical design–certain historical events, not physical change, is what is credited for humans adapting to an omnivore diet. Creating tools, utensils for killing/cutting meat–acting as claws, talons. Weapons to bring an animal down etc. Utilizing FIRE is a key component to this dietary adaptation.
Humans are the only animal that cooks it’s meat. Humans do not have the enzymes that carnivores have to kill the bacteria in meat–that is why we cook it.