hmmm... my mom was an RN, she was also one of the generally most unhealthy people I have ever known. Not bedridden sick, just numerous ongoing complaints, passed away a few years ago. She was of that anti-herbal mentality., till she was on her deathbed but then it was too late. She drank a lot too. Lots of nurses do btw, Be careful in there. I would take the vitamin C and other good vitamins with me if I were you. Have it handy for after the surgery.