Two kinds. Dry gangrene is caused by stopped or reduced blood flow due to injury, frostbite, tourniquet left too long, etc. Wet gangrene results from infected wound or injury. Both may require hostpitalization.
Diet:
Increase leafy greens.
Nutrients:
Chlorophyl, coenzyme Q10, vitamins A, E, C.
Herbs:
Cayenne, echinacea, gingko biloba