Ingredient Fungus / Mushroom (菌类 jūn lèi)

Fu Shen

Spirit Poria · 茯神

Wolfiporia cocos (F.A.Wolf) Ryvarden & Gilb. · Sclerotium Poriae Pararadicis

Also known as: Poria Spirit, Poria with Pine Root, Poria Pararadicis,

Fu Shen (Spirit Poria) plant

Images shown are for educational purposes only

Fu Shen is a specialized part of the Poria fungus that grows naturally wrapped around pine tree roots. It is one of the gentlest calming herbs in Chinese medicine, traditionally used to ease anxiety, settle the mind, and support restful sleep. It is especially helpful for people who feel mentally restless, have trouble sleeping, or experience heart palpitations related to stress or overwork.

Category Spirit-calming herbs (安神药) Dampness-draining herbs (利水渗湿药)
Therapeutic focus Sleep Support Stress and Anxiety Mental Clarity and Focus Digestive Health

TCM Properties

Temperature

Neutral

Taste

Sweet (甘 gān), Bland (淡 dàn)

Channels entered

Heart, Spleen

Parts used

Fungus / Mushroom (菌类 jūn lèi)

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Educational content • Consult qualified TCM practitioners for diagnosis and treatment

What This Ingredient Does

Every ingredient has a specific set of actions — here's what Fu Shen does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Fu Shen is primarily used to support these areas of health:

Sleep Support Stress and Anxiety Mental Clarity and Focus Digestive Health

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Fu Shen performs to restore balance in the body:

Calms the Heart and Quiets the Spirit Promotes Urination and Drains Dampness Strengthens the Spleen

How these actions work

'Calms the Heart and quiets the Spirit' (宁心安神) is Fu Shen's primary and defining action, and is what distinguishes it from ordinary Fu Ling (Poria). In TCM, the Heart houses the Shen (the mind and spirit), so when the Heart is unsettled due to deficiency of Blood or Qi, a person may experience restlessness, anxiety, palpitations, insomnia, excessive dreaming, or poor memory. Fu Shen enters the Heart channel and gently calms the Shen without heavy sedation. It is especially suited for cases where anxiety and insomnia arise from underlying deficiency rather than from excess Heat or Phlegm. Classical texts like the Ming Yi Bie Lu record that it "stops fright and palpitations, irritability, and forgetfulness."

'Promotes urination and drains Dampness' (利水渗湿) means Fu Shen helps the body eliminate excess fluids through urination. This action is shared with Fu Ling but is considered secondary in Fu Shen. When the Spleen fails to properly transform and transport fluids, Dampness accumulates, causing symptoms like a heavy feeling in the body, poor appetite, or loose stools. Fu Shen's bland taste gives it a gentle leaching quality that helps resolve this fluid stagnation.

'Strengthens the Spleen' (健脾) means Fu Shen supports the Spleen's digestive and fluid-metabolizing functions. A healthy Spleen is the foundation for producing Qi and Blood, and when the Spleen is strong, Heart Blood is well nourished and the Shen is naturally calm. This action reinforces Fu Shen's primary role in calming the spirit, because it addresses the root cause of many Heart-related symptoms by supporting the Spleen's ability to generate nourishment for the Heart.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony. Fu Shen is used to help correct these specific patterns.

Why Fu Shen addresses this pattern

When both the Heart and Spleen are deficient in Blood and Qi, the Heart lacks the nourishment needed to anchor the Shen (mind/spirit). This leads to restlessness, palpitations, insomnia, and poor memory. Fu Shen directly enters the Heart and Spleen channels with its sweet, bland, and neutral nature. Its sweet taste gently tonifies and supports the Spleen's ability to produce Blood, while its calming action on the Heart settles the unanchored Shen. This makes Fu Shen an ideal assistant herb in formulas like Gui Pi Tang that address this dual deficiency.

A practitioner would look for one or more of these signs

Insomnia

Difficulty falling or staying asleep due to an unsettled mind

Severe Heart Palpitations

Palpitations that worsen with worry or fatigue

Poor Memory

Forgetfulness and difficulty concentrating

Eye Fatigue

Tiredness and mental exhaustion

Commonly Used For

These are conditions where Fu Shen is frequently used — but only when they arise from the specific patterns it addresses, not in all cases

Arises from: Heart and Spleen Qi and Blood Deficiency Heart Blood Deficiency

TCM Interpretation

In TCM, sleep depends on the Shen (mind/spirit) returning peacefully to the Heart at night. The Heart must have sufficient Blood to provide a calm 'residence' for the Shen. When Heart Blood is deficient, often due to overwork, excessive worry, or Spleen weakness failing to generate enough Blood, the Shen becomes restless and homeless, leading to difficulty falling asleep, light sleep, vivid dreams, or waking frequently. Long-standing stress and mental overexertion drain the Spleen, which in turn starves the Heart of nourishment, creating a vicious cycle of worsening insomnia.

Why Fu Shen Helps

Fu Shen is especially well suited for insomnia because its primary action is calming the Heart and quieting the Spirit. Unlike heavier sedating herbs (such as minerals like Long Gu or Ci Shi), Fu Shen works gently, making it appropriate for mild to moderate insomnia from deficiency rather than excess. Its neutral temperature means it will not aggravate either Heat or Cold conditions. By simultaneously supporting the Spleen, it addresses the root production of Heart Blood. This is why Fu Shen appears as a key ingredient in Gui Pi Tang and Tian Wang Bu Xin Dan, the two most commonly prescribed formulas for deficiency-type insomnia.

Also commonly used for

Severe Heart Palpitations

Palpitations from Heart Blood or Qi deficiency

Poor Memory

Forgetfulness and reduced concentration

Neurasthenia

Nervous exhaustion with sleep and mood disturbances

Edema

Mild fluid retention due to Spleen weakness

Epilepsy

Supportive use in seizure disorders with fright and Phlegm patterns

Depression

Low mood associated with Heart-Spleen deficiency

Ingredient Properties

Every ingredient has an inherent temperature, taste, and affinity for specific channels — these properties determine how it interacts with the body

Temperature

Neutral

Taste

Sweet (甘 gān), Bland (淡 dàn)

Channels Entered

Heart Spleen

Parts Used

Fungus / Mushroom (菌类 jūn lèi)

Dosage & Preparation

These are general dosage guidelines for Fu Shen — always follow your practitioner's recommendation, as dosages vary based on the formula and your individual condition

Standard dosage

9-15g

Maximum dosage

Up to 30g in severe cases of insomnia or palpitations, under practitioner guidance. There is no known toxic dose.

Dosage notes

Use 9-12g as a standard dose for mild insomnia or palpitations. For more severe Heart-spirit disturbance with marked anxiety, restlessness, or insomnia, doses of 15-30g may be used. When the processed form Zhu Fu Shen (cinnabar-coated) is used to enhance spirit-calming action, the dose should remain at 9-15g and should not be used long-term due to the mercury content in cinnabar. Fu Shen is generally interchangeable with Fu Ling in most formulas, but should be specifically chosen when the primary treatment goal is calming the spirit rather than draining dampness.

Preparation

No special decoction handling required. Fu Shen is decocted normally with other herbs. The pine root core is typically removed before use in some traditions (indicated by the classical instruction 'qu mu' 去木, meaning 'remove the wood'), though modern practice often retains it.

Processing Methods

In TCM, the same ingredient can be prepared in different ways to change its effects — here's how processing alters what Fu Shen does

Processing method

Fu Shen blocks are lightly moistened with water, then coated with fine cinnabar (Zhu Sha) powder by tossing until the surface is evenly covered. The coated pieces are then dried.

How it changes properties

The addition of cinnabar (which enters the Heart channel and has a heavy, settling nature) significantly enhances Fu Shen's spirit-calming and Heart-settling actions. The thermal nature remains neutral, but the preparation gains a stronger ability to sedate fright, calm palpitations, and treat more severe cases of anxiety and insomnia. The heavy mineral nature of cinnabar adds a downward-directing quality.

When to use this form

Used when plain Fu Shen is insufficient for more severe cases of fright palpitations, anxiety, or insomnia. Particularly indicated for Heart deficiency with marked restlessness or startled awakening. Note: due to cinnabar's mercury content and toxicity, this form should not be used long-term or in large doses, and is now less commonly prescribed.

Common Ingredient Pairs

These ingredients are traditionally combined with Fu Shen for enhanced therapeutic effect

Suan Zao Ren
Suan Zao Ren 1:1 to 1:2 (Fu Shen 9-15g : Suan Zao Ren 9-30g)

Fu Shen calms the Heart and quiets the Shen from the Spleen side, while Suan Zao Ren (Sour Jujube Seed) nourishes Heart and Liver Blood to anchor the Shen. Together, they address both the root (Blood deficiency) and the branch (restless spirit) of insomnia and anxiety from deficiency. This pairing creates a more complete calming effect than either herb alone.

When to use: Insomnia and anxiety caused by Heart Blood deficiency, especially with palpitations, dream-disturbed sleep, and poor memory.

Yuan Zhi
Yuan Zhi 2:1 (Fu Shen 12g : Yuan Zhi 6g)

Fu Shen calms the Shen from the Heart-Spleen axis, while Yuan Zhi (Polygala root) opens the Heart orifice, expels Phlegm from the Heart, and facilitates communication between Heart and Kidney. Together they address both the Shen disturbance and any Phlegm obstruction that blocks mental clarity. Classical texts frequently note this pair for treating forgetfulness and fright palpitations.

When to use: Heart-Kidney disharmony with insomnia, forgetfulness, difficulty concentrating, or fright. Also useful when mild Phlegm clouds the Heart orifice.

Long Yan Rou
Long Yan Rou 1:1 (each 9-18g)

Long Yan Rou (Longan fruit) tonifies Heart Blood and Spleen Qi, providing the nourishment that the Heart needs to house the Shen, while Fu Shen directly calms the spirit. The pair creates a gentle, sweet combination that both builds and settles, making it effective for chronic deficiency patterns with emotional and sleep disturbances.

When to use: Heart-Spleen deficiency with insomnia, fatigue, poor appetite, and palpitations. This pair reflects the core strategy of Gui Pi Tang.

Ren Shen
Ren Shen 1:1 to 2:1 (Fu Shen 10-15g : Ren Shen 5-10g)

Ren Shen (Ginseng) powerfully tonifies Heart and Spleen Qi, generating the vital force needed to support Blood production and anchor the Shen. Fu Shen calms the spirit that has become restless from Qi deficiency. This pair addresses the root (Qi weakness) and branch (unsettled spirit) simultaneously.

When to use: Severe Qi deficiency with palpitations, fright, shortness of breath, and mental exhaustion. Commonly seen in formulas like the classical Fu Shen Tang.

Key Formulas

These well-known formulas feature Fu Shen in a prominent role

Gui Pi Tang 歸脾湯 Assistant

Gui Pi Tang is the definitive formula for Heart-Spleen deficiency, and Fu Shen serves as a key assistant herb for calming the spirit. It works alongside Suan Zao Ren and Yuan Zhi to settle the Shen while the Qi and Blood tonics (Huang Qi, Ren Shen, Dang Gui) rebuild the deficient root. This formula perfectly showcases Fu Shen's dual role of supporting the Spleen while calming the Heart.

Sang Piao Xiao San 桑螵蛸散 Assistant

In Sang Piao Xiao San, a formula for Heart-Kidney disharmony with frequent urination and forgetfulness, Fu Shen contributes its spirit-calming action to address the mental symptoms (poor memory, absent-mindedness) while other herbs like Sang Piao Xiao and Long Gu stabilize the Kidney and astringe urine.

Comparable Ingredients

These ingredients have overlapping uses — here's how to tell them apart

Fu Ling
Fu Shen vs Fu Ling

Fu Ling (Poria) and Fu Shen come from the same fungal organism but from different parts. Fu Ling is the main body of the sclerotium and excels at draining Dampness, promoting urination, and strengthening the Spleen. Fu Shen is the portion that naturally wraps around the pine root and is specialized for calming the Heart and settling the Shen. When the main clinical goal is fluid metabolism or Spleen support, use Fu Ling. When the primary goal is calming the mind and improving sleep, use Fu Shen.

Suan Zao Ren
Fu Shen vs Suan Zao Ren

Both calm the spirit and treat insomnia, but through different mechanisms. Suan Zao Ren is sour and sweet, entering the Heart and Liver channels to nourish Heart Blood and Liver Yin directly. It is a stronger spirit-calming herb overall and is often the primary (King) herb for insomnia. Fu Shen is milder, with a bland and sweet nature that supports the Spleen while calming the Heart. Fu Shen is best used as an assistant to enhance the spirit-calming action of other herbs, while Suan Zao Ren can serve as a primary treatment for insomnia.

Bai Zi Ren
Fu Shen vs Bai Zi Ren

Both nourish the Heart and calm the spirit, but Bai Zi Ren (Biota seed) is oily, sweet, and neutral, making it better at moistening the Intestines and treating constipation alongside insomnia. Fu Shen has a draining quality (promoting urination) that Bai Zi Ren lacks. For insomnia with dry stools and Yin deficiency, Bai Zi Ren is preferred. For insomnia with Dampness or Spleen weakness, Fu Shen is more appropriate.

Common Substitutes & Adulterants

Related species and common adulterations to be aware of when sourcing Fu Shen

Fu Shen is most commonly confused with or substituted by ordinary Fu Ling (Bai Fu Ling), since both come from the same fungus. The key distinguishing feature is the embedded pine root visible in Fu Shen slices, appearing as a yellowish-brown strand with growth rings in cross-section. Without this pine root core, the product is simply Fu Ling, not Fu Shen. Since Fu Ling is cheaper and more abundant, it is sometimes sold as Fu Shen by simply inserting a piece of pine wood into a block of Fu Ling, but this can be detected because the wood will not be naturally enclosed by the fungal tissue. Additionally, the processed form Zhu Fu Shen (cinnabar-coated) should be distinguished from plain Fu Shen, as the cinnabar coating adds mercury content and requires different safety considerations.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any ingredient.

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Fu Shen

Non-toxic

Contraindications

Situations where Fu Shen should not be used or requires extra caution

Caution

Kidney deficiency with frequent urination (polyuria) or urinary incontinence. Fu Shen's mild diuretic properties may worsen fluid loss in those who already urinate excessively.

Caution

Spermatorrhea or seminal emission due to Kidney deficiency. The herb's draining nature may further deplete Kidney essence in this pattern.

Caution

Yin deficiency with excessive sweating. Classical sources advise caution as the bland, draining quality of Fu Shen could further damage Yin fluids in those already depleted.

Caution

Urogenital prolapse (organ descent). The Chinese Pharmacopoeia lists this as a contraindication for Poria-derived products.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Generally considered safe at standard doses during pregnancy. Fu Shen is mild, neutral, and non-toxic, with no known uterine-stimulating or teratogenic properties. Classical sources do not list it among herbs contraindicated in pregnancy, and some traditional formulas for restless fetus include Poria-derived herbs. However, as with all herbs during pregnancy, use should be guided by a qualified practitioner.

Breastfeeding

No specific concerns have been documented regarding breastfeeding. Fu Shen is classified as non-toxic with a bland, neutral nature. There are no known compounds that would be harmful through breast milk transfer. Its mild calming properties are unlikely to cause sedation in nursing infants at standard maternal doses. Use at standard dosage is generally considered compatible with breastfeeding, though practitioner guidance is recommended.

Children

Fu Shen is considered safe for children due to its mild, non-toxic nature. Dosages should be reduced proportionally based on age and body weight, typically one-third to one-half of the adult dose for school-age children. It is commonly included in pediatric formulas for night terrors, restless sleep, and fright in children. For infants and toddlers under age 3, practitioner supervision is advised.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Fu Shen

No serious drug interactions have been clinically documented for Fu Shen specifically. However, based on the known pharmacological properties of Poria cocos compounds:

  • Diuretics: Fu Shen has mild diuretic properties. Concurrent use with pharmaceutical diuretics (furosemide, hydrochlorothiazide) could theoretically have additive effects on fluid and electrolyte balance.
  • Sedatives and hypnotics: Animal studies show Poria cocos extract can enhance pentobarbital-induced sleep and modulate GABA-A receptor activity. Concurrent use with benzodiazepines, barbiturates, or other CNS depressants could potentially enhance sedation.
  • Hypoglycemic agents: Some preclinical evidence suggests Poria triterpenoids may improve insulin sensitivity. Those on diabetic medications should monitor blood glucose when adding Fu Shen.

Note regarding Zhu Fu Shen: The cinnabar-coated form contains mercuric sulfide, which could interact with any medication that affects heavy metal metabolism. Avoid concurrent use with drugs containing or sensitive to mercury compounds.

Dietary Advice

Foods and dietary considerations when taking Fu Shen

Classical sources advise avoiding vinegar when taking Poria-derived herbs, as vinegar is thought to counteract their therapeutic effects. Avoid excessive cold, raw, or greasy foods that could impair Spleen function and generate dampness, which would work against Fu Shen's gentle Spleen-supporting action. Calming foods such as lotus seed, lily bulb, longan fruit, and jujube pair well with Fu Shen for promoting sleep and nourishing the Heart.

Botanical Description

Physical characteristics and morphology of the Fu Shen source organism

Fu Shen is not a plant but a specific part of the fungus Wolfiporia extensa (syn. Poria cocos), belonging to the Polyporaceae family. It is a wood-decay fungus that grows underground as a parasite on the roots of pine trees, particularly Masson pine (Pinus massoniana) and Chinese red pine (Pinus tabuliformis). The fungus forms a large, potato-shaped subterranean sclerotium (a dense mass of hardened fungal tissue) that can grow up to 30 cm across and weigh about 1 kg. The exterior is grayish-brown to dark brown and wrinkled, while the interior is white and composed of densely packed fungal filaments (hyphae).

Fu Shen specifically refers to the inner white portion of the sclerotium that has naturally grown around and enveloped a pine tree root (called the "fu shen wood" or 茯神木). This pine root core running through the white fungal flesh is the distinguishing feature that separates Fu Shen from ordinary Fu Ling (which is the white sclerotium without an embedded root). The classical understanding is that because Fu Shen "embraces the wood heart" of the pine, it has a special affinity for calming the human Heart and spirit.

Sourcing & Harvesting

Where Fu Shen is sourced, when it's harvested or collected, and how to assess quality

Harvesting season

July to September (summer to early autumn), when the sclerotia are mature. After excavation, they are cleaned, dried by a repeated 'sweating' and airing process, then the portions containing the embedded pine root are separated out as Fu Shen.

Primary growing regions

Yunnan Province is the traditional terroir (道地) region, where the highest quality Poria is produced. Poria from Yunnan is known as "Yun Ling" (云苓) and is prized for its dense texture and high polysaccharide content. Other major producing regions include the Dabie Mountain area spanning Anhui Province (particularly Jinzhai and Yuexi counties) and Hubei Province (especially Luotian, Yingshan, and Macheng counties), as well as Hunan (Jingzhou, the largest national trading hub), Sichuan, Henan, and Guangxi. Today most Poria is cultivated rather than wild-harvested, with annual Chinese production of 10,000 to 13,000 tons.

Quality indicators

Good quality Fu Shen is sold as square or rectangular slices that are firm, dense, and have a powdery texture when broken. The white fungal flesh should be thick, solid, and pale white in color. The embedded pine root visible in the cross-section should be small and thin, appearing yellowish-brown with visible growth rings. The herb should have a very faint smell and a bland, slightly sweet taste that becomes slightly sticky when chewed. Avoid pieces that are excessively dark, soft, crumbly, or where the pine root is disproportionately large relative to the surrounding white flesh. Also watch for sulfur fumigation (detected by an acrid smell), which is unfortunately common in commercial processing but degrades quality.

Classical Texts

Key passages from the classical Chinese medical texts that describe Fu Shen and its therapeutic uses

Ming Yi Bie Lu (名医别录)

Chinese: 疗风眩，风虚，五劳，口干。止惊悸，多恚怒，善忘。开心益智，养精神。

English: Treats wind-dizziness, wind-deficiency, the five types of taxation, and dry mouth. Stops fright-palpitations, frequent anger, and forgetfulness. Opens the Heart, benefits wisdom, and nourishes the spirit.

Yao Xing Lun (药性论)

Chinese: 主惊痫，安神定志，补劳乏；主心下急痛坚满，小肠不利。

English: Governs fright-epilepsy, calms the spirit and settles the will, supplements taxation and fatigue. Governs acute pain and hardness below the Heart, and obstruction of the Small Intestine.

Ben Cao Jing Shu (本草经疏)

Chinese: 茯神抱木心而生，以此别于茯苓。《别录》谓茯神平，总之，其气味与性应是茯苓一体，茯苓入脾肾之用多，茯神入心之用多。

English: Fu Shen grows by embracing the wood heart [of the pine root], and this is what distinguishes it from Fu Ling. The Bie Lu says Fu Shen is neutral. Overall, its flavor and nature are essentially the same as Fu Ling. Fu Ling is mostly used for the Spleen and Kidney, while Fu Shen is mostly used for the Heart.

Yao Pin Hua Yi (药品化义)

Chinese: 茯神，其体沉重，重可去怯，其性温补，补可去弱。戴人曰，心本热，虚则寒。如心气虚怯，神不守舍，惊悸怔忡，魂魄恍惚，劳怯健忘，俱宜温养心神，非此不能也。

English: Fu Shen is heavy in substance, and heaviness can dispel timidity. Its nature is warming and supplementing, and supplementation can overcome weakness. Zhang Zihe [Dai Ren] said: the Heart is inherently warm; when deficient, it becomes cold. For Heart Qi deficiency with timidity, the spirit not guarding its residence, palpitations, a dazed and confused state, fatigue with forgetfulness, one should warm and nourish the Heart spirit. Nothing other than [Fu Shen] can accomplish this.

Historical Context

The history and evolution of Fu Shen's use in Chinese medicine over the centuries

Fu Shen first appeared as a distinct medicinal substance in the Ming Yi Bie Lu (名医别录), compiled around the 3rd century CE and attributed to Tao Hongjing. Prior to this, only Fu Ling (Poria) was mentioned in the Shen Nong Ben Cao Jing. As Li Shizhen noted in the Ben Cao Gang Mu, the Shen Nong Ben Cao Jing spoke only of Fu Ling, and it was the Bie Lu that first added Fu Shen as a separate entry. The formal distinction between Fu Shen and Fu Ling became clearer during the Eastern Jin dynasty, and by the Tang and Song dynasties, different parts of the Poria sclerotium were further differentiated for clinical use.

The name "Fu Shen" (茯神) literally means "hidden spirit" or "crouching spirit." An ancient belief held that pine resin transformed underground over a thousand years to become Fu Ling, and after another thousand years became Fu Shen, the part surrounding the pine root, endowed with special spirit-calming properties. Zhang Yuansu (Zhang Jiequ) of the Jin-Yuan era stated that "wind-dizziness and Heart deficiency cannot be treated without Fu Shen," emphasizing its irreplaceable role in calming the spirit. The processed form Zhu Fu Shen (朱茯神), coated with cinnabar powder, was developed to further enhance its Heart-calming and spirit-settling action, and is commonly used in formulas addressing severe insomnia and anxiety.

Modern Research

4 published studies investigating the pharmacological effects or clinical outcomes of Fu Shen

1

Efficacy of Poria Cocos Extract on Sleep Quality Enhancement: A Clinical Perspective with Implications for Functional Foods (Clinical trial, 2023)

Kim H, Choi H, Park BG, Ju HJ, Kim YI. Nutrients, 2023, 15(19): 4242.

This Korean study administered 800 mg of Poria cocos ethanol extract nightly to 21 adults with insomnia. Using polysomnography, it found a significant increase in total sleep duration (from ~327 to ~357 minutes, p=0.014) and a significant decrease in wakefulness during sleep (from ~76 to ~48 minutes, p=0.009). The study had no placebo control group, limiting its conclusions, but it provides objective data supporting the traditional sedative use of Poria.

Link
2

Effects of Poria Cocos, Ziziphus spinosa, and GABA on Sleep Quality and Skin Health: A Randomized Double-Blind Placebo-Controlled Clinical Trial (RCT, 2024)

Hao Y, Song W, Qu L. Food Science & Nutrition, 2024, 12(6): 3883-3892.

In this 4-week RCT, 70 subjects with sleep disorders received either placebo or a combination supplement containing Poria cocos, Ziziphus spinosa (Suan Zao Ren), and GABA. The treatment group showed a 12.96% increase in total sleep duration (p=0.006) and a 59.94% decrease in Pittsburgh Sleep Quality Index scores (p<0.001) compared to baseline. Skin hydration and roughness also improved. The combined formula makes it difficult to attribute effects solely to Poria.

Link
3

Chemical Constituents and Pharmacological Properties of Poria cocos (Review, 2011)

Ríos JL. Journal of Ethnopharmacology, 2011, 128(1): 1-12.

This comprehensive review compiled published data on Poria cocos chemistry and pharmacology. It found that triterpene compounds (pachymic acid, tumulosic acid, etc.) demonstrate marked anti-inflammatory activity via inhibition of phospholipase A2, while polysaccharides potentiate the immune response by enhancing secretion of immune stimulators. The review concluded that clinical research remains insufficient to fully establish efficacy and safety from a modern scientific perspective.

PubMed
4

Poria cocos Water Extract Ameliorates Behavioral Deficits Induced by Unpredictable Chronic Mild Stress in Rats (Preclinical, 2020)

Huang YJ, Hsu NY, Lu KH, Lin YE, Lin SH, Lu YS, Liu WT, Chen MH, Sheen LY. Journal of Ethnopharmacology, 2020, 250: 112502.

This animal study found that Poria cocos water extract exhibited potent antidepressant-like effects in rats subjected to chronic mild stress. The mechanism involved regulation of monoaminergic neurotransmission (serotonin, norepinephrine, dopamine) and inactivation of inflammatory pathways. The results suggest Poria may have potential as a natural antidepressant agent, supporting its traditional use for calming the spirit.

PubMed

Research on individual TCM herbs is growing but still limited by Western clinical trial standards. These studies provide emerging evidence and should be considered alongside practitioner expertise.