When somebody dies they become a corpse which you can take apart into 6 pieces.
- Head
- Left arm
- Right arm
- Right Leg
- Left Leg
- Torso (Remains on the ground)
Eating the raw remains of your friends would lead to getting nausea and slowness.
A raw head would get you 1.5 hunger bars. Raw arms and legs 2 hunger bars. The torso remains on the ground and behaves like a cake. Whenever you finish your head you are left with a skull. For each arm and leg you are left with 2 bones. After two in-game days the torso will decompose and just be a ribcage. Cooking the head and eating it will be 2 hunger bars, arms and legs would be 2.5 and you wouldn't gain any negative effects.