I want to use a metal detox on my husband but he has a metal heart stint (not sure of material). Is it safe to run the detox protocol?

Metal used in surgeries and implants are very stable. They do not deteriate or change composition over time. Titanium and stainless being 2 such examples. It is perfectly safe to run the detox protocols with stints, staples, pins, or other metallic objects in the body.