None. First of all I am starving so which means the fellow who just died would have to be a few days old. That means he or she is decaying. The look and the smell would make me puke. So it will just add to my starvation and dehydration. I would probably resort to bugs or plants way before eating another person. If the person is all I have available to eat than chances are eating them is not going to increase my chance of survival.
Water would be my biggest concern. If I’m in the dessert than I’m a goner any way. If I’m in some frozen area than I’ll freeze first before I starve. If I’m on an island, I’ll try claming or something. Coconuts, bugs, fish, anything but eating someone else.