Let’s say you are dying of starvation. You pull one of your teeth out, causing blood to slowly seep into your mouth, which you swallow. The calories from the blood getting digested will delay the time you die of starvation, right? Or will losing blood while starving kill you faster?
It wouldn’t delay your death. But it would make it more pleasant. You would most likely pass out from low blood pressure pretty quickly and then you wouldn’t have to worry about starving any more.