I think vitamin c supplements is what its all about. I have a friend who took high dose vitamin c all of the time when she had cancer, she was impressed with the results to say the least. I don't know whether to believe science or just believe people's testimonials but I'm a believer which is why I take it daily for preventative measures. I buy it from
http://www.livonlabs.com/ because that was where I first tried it and have had no reason to stray away.