>I'm disappointed that even the geeks of /. are so easily persuaded by pharmaceutical industry propaganda.
Even though Peppermint Oil had the highest ratings in both quality of research and effect size, of any of the studied IBS treatments in the paper, I'm sure there are a number of people reading this on Slashdot right now secretly suspecting that it must be bullshit because it sounds too "alt meddy" to them.
>Meanwhile, a lot of prescription medication is clearly dangerous. How many herbal supplements have been taken off the market recently because of health risks? Ephedra is the only one that comes to mind, and it isn't even all that dangerous by pharmaceutical standards. How many FDA-approved drugs have been taken off the market recently? Dozens.
In the IBS paper alone, there were several drugs that were pulled from the market for being too dangerous.
But it works the other way as well. Just because something is all hippie and natural doesn't mean it's inherently safer or doesn't have side effects. St. John's Wort has drug-drug interactions with many many drugs due to its effect on CYP3A4. Grapefruit juice, incidentally, is dangerous as well if you're on a lot of drugs due to its opposite effect on it.
Just because the FDA doesn't ban them doesn't mean they aren't going to be bad for you. In general, the FDA does not regulate herbs unless they can no longer be generally regarded as safe (GRAS).