Water is natural too and if you drink too much you can die from diluting your electrolytes.
Want to regualate water too? It's all natural.
Many herbs DO have medicinal properties and effects which are used to treat diseases. Supplements are used by over 70 million Americans daily and make people more healthy.
Herbs are safe and can treat diseases and conditions if you do your research and take the correct amounts. People should research anything they put into their mouths.
Dr. Duke has a great book on herbal remedies.
Reducto ad absurdum.