SO DYK
The curious few.
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Know what you're putting in your body.

158 herbs, nutrients, and compounds. What the science says, what tradition knew, and what to watch for. Founding members keep this running.

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HEART FUNCTION

Dong Quai

Angelica sinensis

also known as female ginseng

Moderate (traditional)

A Chinese angelica root, sometimes called 'female ginseng' for its long traditional use in women's health. Dong quai has been used in traditional Chinese medicine for over two thousand years, almost always in formulas alongside other herbs rather than alone. Modern clinical evidence for many of the bigger claims is limited; the strongest evidence is for its traditional use in combined Chinese formulas.

  • Long traditional Chinese medicine use for menstrual irregularities, painful periods, and post-menopausal symptoms
  • Almost always used in classic Chinese formulas (TCM.">Si Wu Tang, Shi Quan Da Bu Tang) rather than alone
  • Traditional use as a 'blood tonic' — supports blood building and circulation in TCM theory
  • Mild anti-inflammatory action documented in modern research
  • May modestly improve menopausal symptoms, particularly in TCM-formulated combinations
  • Cooking-grade dong quai is added to soups and stews in Chinese household traditions
Mild blood-thinning effect — caution with blood thinners, particularly warfarin (interaction has been documented)
Stop two weeks before surgery
Skip during pregnancy — traditional use suggests stimulation of the uterus
Skip during heavy menstrual bleeding
Skip with hormone-sensitive cancers without provider guidance
Skip during nursing
Causes photosensitivity — increased sun-sensitivity in fair-skinned people
Use caution with hormone replacement therapy
Use caution with diabetes medication
The curious few.
50 founding spots left

Know what you're putting in your body.

158 herbs, nutrients, and compounds. What the science says, what tradition knew, and what to watch for. Founding members keep this running.

$60 /year

Founding rate — locked for life. Regular price after launch: $96/year.

  • Full access to all 158+ entries
  • Print-ready reference card for every herb
  • Monthly curated set — 5 herbs, one body system
  • The Sunday Letter — weekly research digest
  • Bookmarks synced across devices
  • Founding rate locked forever
Become a founding member

Cancel any time. No questions asked.