Due to a colon disease, my gastroenterologist suggested that I take vitamins. He "prescribed" if you will, the vitamins that I should take. I had been taken vitamins for 10 years when I was introduced to Melaleuca's supplements. Coming from the medical field made me very interested in the science behind these vitamins. After reading all the science plus the patent on their technology, I decided to test them out. Here it is 11+ years later and I have never been healthier! I've had one minor relapse with the colitis/Crohns. My doctor says I'm the healthiest sick person he's ever treated. I couldn't be happier or healthier!