A full set of vitamins as a general starting point. A B C D E .... including one of the better daily multivitamins. You might consider L-Arginine, though some say that's risky. The French pine tree extract too, but it's expensive. Ubiquinol (CoQ10 activated) if you are over 40 years of age. Worth the money. Include a broad mix of fresh vegetables in your diet. Maintain it. Easy on the carbs. Eat more fresh caught fish - not the farmed stuff. Avoid feed lot meats as much as possible. Switch to grass fed beef. Regular walking for exercise will reshape your body inside and out, over time. Easy to pace yourself as you heal. Regularity is more important than how hard you work out for long term recovery. Some days are normally better than others. After a year of this you will be a new person.