However, one good thing is that they have tested out many of the common "remedies" and supplements that many Americans take and have succeeded in disproving them. The trash heap now contains at least:
- Vitamin C (Too much can cause diarrhea or oxalate stones)
- Antioxidants They may actually harm systems that depend on free radicals
And if you thought that Zicam was safe, watch out. It can cause a complete loss of smell and taste. So although it _may_ have a modest affect for the common cold, I don't think that the risk may outweigh the benefits.
Also, if any substance has a pharmacological effect on the human body, then _it is a drug_ And you should tell your doctor when you are taking these things because they can have drug interaction effects just like any prescription drug. Some can be very dangerous to not tell your doctor about. And as with any drug, they can have side effects.