Herb guide › Japanese Knotweed
Japanese Knotweed
A bitter, earthy tea made from the rhizome/root of Reynoutria japonica (syn. Polygonum cuspidatum), a plant naturally rich in resveratrol and related compounds.
Traditionally used for
Lyme support, Inflammation, Circulation concerns
Potential benefits
Antioxidant and anti-inflammatory support with traditional circulation benefits; a natural source of resveratrol, traditionally used for cardiovascular and Lyme-related support.
Ingredients
Japanese Knotweed (Reynoutria japonica)
Origin
Japan, China and Korea
How it is traditionally prepared
No standardized tea dosage recommended — use only under a qualified practitioner's formulation. Traditionally 250–500 mg extract or 1–2g root powder/day.
Cautions and who should avoid it
Human evidence for whole-herb tea is limited and dosing is not standardized. Avoid during pregnancy and breastfeeding. May interact with medications and should not be treated as a casual daily tea.
Get tea recommendations for how you feel, and keep a journal of what works for you.