Some people eat dog, some eat cat, some eat horse. some eat all sorts of things that we as a society doesn't think is good or right. Because of what we think or have been taught does not the truth make.
In SERE training I found that many things that we don't normally eat can in some cases be very good. When you're hungry things change.
I won't go into what we had to eat to survive as I'm not into grossing one out