On the other hand, there are also many counterarguments to using animals. First of all, there are many who argue that a balanced diet can be achieved through veganism. For instance, protein can be sourced from non-meat products such as lentils or nuts. This means that one can stay healthy and illness-free without the need for killing animals. Moreover, many animal rights activists argue that animals have feelings just like people do. From this viewpoint, keeping an animal in a cage is the same as keeping a human in a cage.