Plants or vegetables are their only food. Because according to them, slaughtering animals is a very painful and cruel act. They also have the right to life and that right cannot be denied.
But if we look at the nature of the world and consider it from a deeper point of view, it is clear that slaughtering animals is an innocent act. Because these animals of the world are not their own purposeful creation. There is nothing wrong with their conscience and their own will and ability to choose. Their normal body organization proves that they are created and employed for the purpose of accomplishing human service. People do a lot of work by bringing them under control.
Similarly, if they are slaughtered and taken as food, there can be no objection. The law given by God to the creation is always effective, the inferior and inferior creation is sacrificing for the good and superior creation. Similarly, animals are constantly being used as human food. Similarly, animals are becoming human food. Not only that, for the safety of the human race, it has become a normal thing to kill a person.
If animals are not slaughtered for human beings, it is not possible for them to be saved from death and destruction. They are bound to be eaten by other powerful beasts and monsters. Or they may be forced to die a natural death. And that is sure to be more painful than carrying a sharpened weapon around their necks.

