Dong Quai (Dang Gui) for Hormone Balance
By Dr (TCM) Attilio D'Alberto | Traditional Chinese Medicine Practitioner, Wokingham
Dong quai — known in Chinese medicine as Dang Gui (Angelica sinensis) — is one of the most revered medicinal plants in the East Asian tradition. It has been used for over two thousand years to regulate the menstrual cycle, nourish blood, relieve pain, and support women's reproductive health. In contemporary herbal medicine it is frequently marketed as a natural oestrogen, which is an oversimplification — its mechanism is more nuanced and its uses are more specific than this label suggests. Understanding how it actually works helps clarify when it is appropriate and when it is not.
TCM Properties
In traditional Chinese medicine, Dang Gui is sweet, acrid, and warm. It tonifies and invigorates blood, regulates menstruation, alleviates pain, and moistens the intestines. Its dual action of building blood AND moving it is its most distinctive feature — unlike purely nourishing blood tonics (such as Shu Di Huang), Dang Gui ensures the blood it generates also circulates properly. This makes it particularly valuable for patterns where blood deficiency coexists with stagnation — producing irregular periods, blood clots, and dysmenorrhoea alongside pallor and fatigue.
Phytoestrogenic Activity
Dang Gui contains ferulic acid and other compounds that have been shown to bind weakly to oestrogen receptors. However, its oestrogenic activity is significantly weaker than endogenous oestrogen, and some studies suggest it acts as a selective oestrogen receptor modulator (SERM) — oestrogen-like in some tissues and anti-oestrogenic in others. This means it does not straightforwardly "raise oestrogen" — and whether it is appropriate for women with oestrogen-sensitive conditions such as endometriosis or hormone-sensitive cancers requires careful individual assessment by a qualified practitioner.
Menstrual Regulation
Dang Gui is most commonly used for irregular periods, delayed periods, painful periods, and scanty flow — all expressions of blood deficiency or blood stasis in TCM. It is one of the principal herbs in Ba Zhen Tang, Xiao Yao San, and dozens of other classical gynaecological formulas. Research has confirmed its antispasmodic effects on uterine smooth muscle — explaining its efficacy for dysmenorrhoea — and its ability to improve pelvic blood flow.
Menopausal Symptoms
Dang Gui is widely promoted for menopausal hot flushes. The clinical evidence here is mixed — used alone it has not consistently outperformed placebo in RCTs. However, used as part of a traditional combination formula (as it always is in authentic TCM practice), outcomes are considerably better. It should not be used during pregnancy due to its blood-moving and uterine-stimulating effects.
How I Prescribe It
I never prescribe Dang Gui as a standalone herb — it is always part of a tailored formula that accounts for the full clinical pattern. The correct dose, combination, and cycle-phase timing matter enormously to its effectiveness and safety. I prescribe pharmaceutical-grade granules from Sun Ten in Taiwan.
To discuss Dang Gui or hormonal balance, contact me or book a consultation in Wokingham.
