Herbal remedies for cancer?
Whenever I lecture on the topic of alternative medicine for cancer, the first comment from the audience usually is "aren't there any herbal treatments that are effective?" This is of course a most reasonable question; after all, many conventional cancer drugs originate from the plant kingdom – think of Taxol, for instance. My answer often upsets believers in alternative cancer remedies. I tell them that, no, there is none and, even worse, there never will be one. Did I just contradict myself? Did I not just state that many cancer drugs come from plants? Yes, but once the pure ingredient is isolated and synthetized, the drug ceases to be an herbal remedy which is defined as an extract of all the plant's ingredients, not just one isolated constituent. And why am I so depressingly pessimistic about there ever being an herbal cancer cure? Because of a simple fact: as soon as a natural substance shows the slightest promise, scientists will analyse and test it. If this process turns out to
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