Butchering allies?

So, recently my colony came under attack while an allied trading caravan was visiting. With the help of my allies I managed to defeat the raid with no small losses on both sides. Some of my allies died too.

Now my food is running low and I was wondering, will my allies get mad at me if I butcher their dead? My colonists dont really mind, they're all on mental breaks regardless most of the time, but I can deal with that.