CCC 2417 God entrusted animals to the stewardship of those whom he created in his own image.¹ Hence it is legitimate to use animals for food and clothing. They may be domesticated to help man in his work and leisure. Medical and scientific experimentation on animals is a morally acceptable practice if it remains within reasonable limits and contributes to caring for or saving human lives.

1 Cf. Gen 2:19-20; 9:1-4.