Nutrition is the oldest form of medicine. ALL of the prescription drugs that you purchase over the counter have derived in some way or other from its natural counterpart. I don't necessarliy believe that the medical industry is out to get anyone, but they are very, very misinformed. Look at med students (trainee docs etc), they are offered all sorts of benefits if they choose to administer a certain drug to their patients when they begin a practice. AND most over the counter pesciption drugs have been tested on animals. That includes cancer treatments etc. I don't know how many people dedicate their bodies as cavadars for medical research but I suppose the numbers are quite small. We can hardly get people to donate their own blood, or organs over here due to scare mongering tactics, let alone their whole body!
I never, ever get sick. I was once diagnosed with the "Flu" which lasted a whole of 3 days, after taking massive doses of echinacea. The body has a very sufficient immune system which can operate, fight diseases (yes even cancer) if it is armed with the proper nutrition, and yes, being a vegan is congruent with optimum health & vitality. Although, just because you are a vegan doesn't always mean you are healthy. Being a vegan is a big responsibilty, you have to include a lot of whole foods, choosing mainly organic produce, or growing your own.
I've had more serious health issues and I am alive and kicking today, not due to some amazing pharmacutical cure, but due to extremely rigid diet, supplementation (not needed if ALL the rights foods are being combined correctly) and a very strong dose of optimism. I'm a glass is half full kind of gal