Pro: Humans are carnivorous beings; eating meat is natural.
Pro: Consuming meat is good for human health.
Con: Consuming meat is bad for human health.
Con: Animals have a desire for life. Humans have an obligation to honor that desire. Humans ought to respect the autonomy of animals.
Pro: Humans do not have an obligation to honor all the desires of other beings. We do not have to act as instruments in fulfilling the desire of animals for life.
Pro: Our species is superior to the others, and we may use them to satisfy our needs. The consumption of animals by humans is a way of perfecting the animals: the latter provide nourishment to a higher form of life.
Con: Consuming meat is wasteful of natural resources; it is uneconomical.