What duration does the NCCIH recommend limiting continuous *Echinacea* use to?
Ten days to two weeks
Health organizations advocate for a conservative approach to the continuous ingestion of *Echinacea*, particularly because of its immune-stimulating properties. The National Center for Complementary and Integrative Health (NCCIH) specifically suggests that individuals should generally limit their uninterrupted consumption of the supplement to a window spanning approximately ten days up to two weeks. While definitive, specific evidence proving harm from extended usage beyond this period is often lacking, this guideline functions as a cautious measure. The rationale behind this recommendation is to prevent potential long-term immunological effects that might arise from constantly signaling the immune system to be highly active, aligning with historical patterns of how the herb was traditionally used in acute scenarios.
