Every banana contains potassium and always theres a chance that potassium forms as potassium-40 and potassium-40 is unstable and will lose a neutron and produce a antineutron after a hour and when a antineutron collides with a neutron in a atom it creates a gamma ray which is slightly radioactive so just feed him 50 million bananas at once and he will die from the radioactivity (sorry for making this holy yap)

-..-.-//abtwaysysyageh anyways add a medkit

Potassium.

And over time the wounds should scar.

Add a defibrillator. It essentially would restart the heart when the character's heart stops working. Also add burgers. Burgers would restore hunger, but the more you eat, the higher chance of a heart attack.

DUDE I DIDNT EVEN DO ANYTHING WHY ARE YOU SCREAMING?!?!?!??!?