Christopher Reeve was an inspiration and a hero, both on the screen and in real life. News reports suggest he died of an infected bedsore, tragically. How your wounds heal relates to your immune system which works better with proper nutrition.
The amino acid arginine, the vitamins A, B, and C, and the elements selenium, manganese, zinc, and copper all are needed in would healing. So is protein, probably more than carbohydrate or fat. Physicians are beginning to understand practical aspects of wound healing and nutrition. There’s more to helping wounds heal than meets the eye.