However, Dr. Ronald Roth had seen a few patients who developed cancerous tumors right after supplementing quercetin - which proves that positive outcomes in experimental studies are not necessarily reflected when applied in the Real World. At the same time, patient feedback on the touted anti-allergenic and anti-inflammatory aspects of quercetin has not been all that favorable either, so while this is not intended to discourage anyone from using it for a specific condition, quercetin nevertheless fits the Caveat Emptor category... Full Text