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Yi Zhi Ren, also known as Alpinia oxyphylla fruit, is a time-tested treasure in Traditional Chinese Medicine (TCM). For centuries, it's been used to strengthen the Kidneys, secure Essence, warm the Spleen, and improve digestion—all essential functions for long-term vitality and balance. Whether you're dealing with frequent urination, memory issues, weak digestion, or cold-type patterns, Yi Zhi Ren offers gentle, effective support from root to core.
In this complete guide, you’ll learn everything you need to know about Yi Zhi Ren’s health benefits, how to use it, dosage, precautions, and its powerful role in TCM.
Black Cardamon Seed - Yi Zhi Ren (益智仁) is the dried fruit of the Alpinia oxyphylla plant, part of the ginger family. Grown mainly in southern China, it has a warm, pungent nature and targets the Kidney and Spleen meridians.
In TCM, it's especially valued for its ability to secure Essence (Jing), stop leakage, and warm internal cold that disrupts digestive and urinary function.
Black Cardamon Seed - Yi Zhi Ren is known for two major energetic properties in Traditional Chinese Medicine:
Helps with frequent urination
Reduces urinary leakage or dribbling
Addresses premature ejaculation, spermatorrhea
Supports lower back and knee weakness
Relieves chronic cold-type diarrhea
Eases excessive salivation
Improves poor appetite from cold Spleen Qi
Top Health Benefits of Yi Zhi Ren (Black Cardamom Seed)
Warms Kidney Yang, secures Essence, stabilizes Lower Jiao.
Tonifies Spleen Yang, transforms Dampness, promotes Qi flow.
Tonifies Kidney Jing, nourishes Marrow, calms the Shen.
Strengthens Ming Men Fire, tonifies Kidney Yang.
Warms Spleen and Stomach, supports Qi and Yang post-delivery.
Tonifies Spleen, warms Yang, secures intestines.
Tonifies Kidney Jing, anchors Essence, nourishes the Root of Life.
Cut dried fruit – for decoctions and tea
Powdered form – for capsules or formula blending
Tincture or extract – for concentrated dosage
Crush slightly before decocting to enhance extraction of active compounds.
Yes, in moderate doses and ideally within a balanced formula. Long-term use should be monitored by a TCM professional.
It’s commonly used in elderly support formulas. Use in children only with herbal supervision.
Yes, in TCM it is used to nourish Kidney Essence, which is associated with brain function.
Absolutely. It pairs well with herbs like Rou Cong Rong, Tu Si Zi, and Fu Zi.
Yes! Slightly crush the fruit and simmer 6–9g for 20 minutes for a warming tea.
No—though often used in male tonics, it benefits both sexes, especially for urinary issues and digestive cold patterns.
Yi Zhi Ren is a versatile, gentle, and effective herb with deep roots in TCM. It strengthens foundational energy (Jing), supports digestion, urinary health, and cognitive clarity—all without the harsh effects of strong stimulants or sedatives.
For those experiencing fatigue, cold in the limbs, memory lapses, or digestive discomfort tied to internal cold or weakness—Yi Zhi Ren offers a well-balanced, natural solution.
Common Name: Chinese Black Cardamom,Alpinia Fruit, Alpinia Oxphylla Fruit, Sharpleaf Galangal Fruits, Sharp-leaf Galangal fruit, Black Cardamom Seed, Black Cardamom Fruit
Botanical Name: Fructus Alpiniae oxyphyliae
Chinese / Pin Yin Name: Yi Zhi Ren, Yi Zhen Ren
Black Cardamom Seed Dosage: Consult your healthcare provider for your correct dose.
Black Cardamom Seed Precautions: Do not use if nursing or pregnant. Do not use with Yin deficiency.
There are many herbs that share the same name, Black Cardamon seed is one of them. The herb discussed on this page is the black cardamon seed, Alpiniae oxyphyliae. It is not the same herb as black cardamon seed with the botanical name Amomum subulatum. They are two entirely different plants. It is always important to ensure you know the correct botanical name when using herbs.
Black cardamom seed, Alpiniae oxyphyliae, is a member of the ginger family. It has been used medicinally and as a food source for thousands of years in China. Black cardamom seed is harvested in the late summer and early fall when the fruit turns red. After harvest, it is dried in the sun.
Black cardamom seed is a traditional Chinese medicinal herb used for tonifying the kidney, warming the spleen, and to stop diarrhea. Studies have found black cardamom seed to have a neuroprotective effect. It benefits cognitive function, digestive health, urinary tract health, the nervous system, and helps to ease occasional diarrhea.
Black Cardamom Seed Herb Category: Herbs that Tonify the Yang.
Black Cardamom Seed Properties: Sweet, Warm, Pungent, Astringent
Black Cardamom Seed Channels: Kidney, Spleen
Black Cardamom Seed Naturally Occurring Components: eucalyptol, zingiberene, zinginerol, cineole, volatile oils,diarylheptanoids
Chinese Yam Root Pinellia Poria Fungus Ginger
Reference:
https://www.ncbi.nlm.nih.gov/pubmed/20723592
https://en.wikibooks.org/wiki/Traditional_Chinese_Medicine/Usage_Of_Single_Herbs
http://alternativehealing.org/yi_zhi_ren.htm
https://tcmwiki.com/wiki/yi-zhi-ren
https://www.sciencedirect.com/science/article/abs/pii/S0378874117342381
https://www.americandragon.com/Individualherbsupdate/YiZhiRen.html