Q) Should we kill animals for food? A) Actually, I haven't thought about this seriously before. I learned from school that animals were good living for helping our ancients to do farm work and for food , which made me think eating animals is a way of their living. I know there are some people strongly against this. There have been some movements that try to take responsibilites for animals and to protect animals from being killing for food around the world. Whenever I watched those movements happening on TV, I thought animals's right should be protected but since I started going on a ketogenic diet, I have felt guilty because fat from animals is one of good resources for me.