Sharp-leaf galangal fruits

Chinese: 益智仁

Pinyin: Yì Zhì Rén

Parts used: Dried ripe fruit

TCM category: Tonic herbs for Yang Deficiency

TCM nature: Warm

TCM taste(s): Pungent

Meridian affinity: SpleenKidney

Scientific name: Alpinia oxyphylla

Other names: Sharpleaf Galangal Fruit

Use of sharp-leaf galangal fruits (Yi Zhi Ren) in TCM

Please note that you should never self-prescribe TCM ingredients. A TCM ingredient is almost never eaten on its own but as part of a formula containing several ingredients that act together. Please consult a professional TCM practitioner, they will be best able to guide you.

Preparation: Harvest the fruit when ripe, remove the seed and dry.

Dosage: 3-9 g

Main actions according to TCM*: Tonifies Kidney Yang and consolidates Kidney Qi. Warms the Spleen and stops diarrhea and salivation.

Primary conditions or symptoms for which sharp-leaf galangal fruits may be prescribed by TCM doctors*: Diarrhea Abdominal pain Enuresis Spermatorrhea Urinary incontinence

Contraindications*: Not for symptoms of vomiting, diarrhea and frequent urination caused by Internal Heat.

Common TCM formulas in which sharp-leaf galangal fruits are used*:

Key TCM concepts behind sharp-leaf galangal fruits (Yi Zhi Ren)'s properties

In Traditional Chinese Medicine (TCM), sharp-leaf galangal fruits are plants that belong to the 'Tonic herbs for Yang Deficiency' category. Tonic herbs are used for patterns of Deficiency, when one lacks one of the 'Four Treasures' (Qi, Blood, Yin and Yang). Yang Tonics are generally used in combination with a small amount of Yin tonics. If Yin is deficient, neither Qi nor Yang herbs alone will be effective. The most common symptoms associated with Yang Deficiency are low libido and impotence. It is worth mentioning that another very effective remedy against Yang Deficiency is regular exercise.

Furthermore sharp-leaf galangal fruits are plants that are Warm in nature. This means that sharp-leaf galangal fruits tend to help people who have too much "cold" in their body, although with less effect than a plant that would be Hot in nature. Balance between Yin and Yang is a key health concept in TCM. Those who have too much cold in their body are said to either have a Yin excess (because Yin is Cold in nature) or a Yang deficiency (Yang is Hot in Nature). Depending on your condition sharp-leaf galangal fruits can help restore a harmonious balance between Yin and Yang.

Sharp-leaf galangal fruits also taste Pungent. The so-called "five elements" theory in Chinese Medicine states that the taste of TCM ingredients is a key determinant of their action in the body. Pungent ingredients like sharp-leaf galangal fruits tend to promote the circulations of Qi and body fluids. That's why for instance someone tends to sweat a lot when they eat spicy/pungent food.

The tastes of ingredients in TCM also determine what organs and meridians they target. As such sharp-leaf galangal fruits are thought to target the Spleen and the Kidney. In TCM the Spleen assists with digestion, blood coagulation and fluid metabolism in the body. The Kidneys do not only regulate the urinary system but also play a key role in the reproductive system and the growth and aging process of the body.

Research on sharp-leaf galangal fruits(Yi Zhi Ren)

Sharp-leaf galangal fruit has an anti-diarrheal effect.1

Sharp-leaf galangal fruit has a protective effect against bone loss.2


1. Wang S. Zhao Y, Zhang J, Huang X, Wang Y, Xu X, Zheng B, Zhou X, Tian H, Liu L, Mei Q (2015) Antidiarrheal effect of Alpinia oxyphylla Miq. (Zingiberaceae) in experiemental mice and its possible mechanism of action. J Ethnopharmacol 168:182-90

2. Hyunil Ha, Ki-Shuk Shim, Taesoo Kim, Chung-Jo Lee, Ji Hyung Park, Han Sung Kim, Jin Teul Ma. (2014) Water extract of the fruits of Alpinia oxyphylla inhibits osteoclast differentiation and bone loss. BMC Complement Altern Med 14:352

Use of sharp-leaf galangal fruits (Yi Zhi Ren) as food

Sharp-leaf galangal fruits are also eaten as food.