Kudzu Root
葛根 · Gé Gēn
Eases stiff necks, headaches, and fever-tinged colds
What it does
Kudzu root eases the stiff neck and shoulders that come with tension headaches, and brings down low-grade fevers from colds and flu. In TCM, it releases the surface and generates fluids for the rigid-neck-with-fever pattern. It also calms hot diarrhea and is classical for diabetes thirst. Three trials cover cardiovascular and metabolic effects.
Safety
- Generally well tolerated
- May lower blood pressure. Monitor if you take antihypertensives
- Skip during pregnancy unless directed by a practitioner
- Phytoestrogen content. Caution with hormone-sensitive conditions
- Talk to your doctor before starting, especially if you take medication
How to take it
Decoct 9–15g of dried kudzu root in water for 25 minutes. Drink 1 cup, 1–2x daily during acute neck-and-shoulder colds or chronic tension.
Try a Ge Gen Tang formula at the first chill of a stiff-neck cold
Use kudzu starch to thicken sauces, soups, and puddings. Mixes into hot water as a soothing drink.
Whisk a teaspoon of kudzu starch into cool water, then heat to make a soothing porridge
Where it comes from
Kudzu (Pueraria lobata) is the same fast-growing vine that's an invasive species across the southern United States. In TCM, it's been valued for over 2,000 years and appears in two famous formulas: Ge Gen Tang for stiff-neck colds, and Ge Gen Qin Lian Tang for hot diarrhea. The root is rich in isoflavones with documented vasodilatory and anti-inflammatory effects. Three clinical trials track its use for hypertension and metabolic markers.