Vegetarians have long intestines. They eat fibrous vegetables. This kind of food is digested quickly, but meat residues remain there for seven and more days. Meat-eaters have short intestines. Vegetarian animals drink water with the lips, whereas meat-eaters use their tongue.
Dogs reject certain human food, like honey which comes from flowers.
Even animals understand what to eat and what not to eat. The elephant, which is very powerful, is a vegetarian, but the lion is a meat-eater. When a vegetarian becomes a meat-eater, that goes against nature. It is also leads to mental perversion. According to one's food so becomes one's mind, and the liquids you drink affect your speech.