'Natural' meds legal, but unregulated

Homeopathy sprang from the inventive — some would say fanciful — mind of German physician and chemist Samuel Hahnemann in the late 1700s. Experimenting on himself, he became convinced that if an ingredient causes a symptom in a healthy person, it will treat the disease that causes the same symptom. He also theorized that diluting ingredients to minuscule, even untraceable, concentrations paradoxically makes them more powerful.