Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Poria Mushroom

BotanicalSclerotium

Useful mainly for people using traditional Chinese herbal formulas for sleep or mild anxiety.

Quick decision guide

May help most

people using traditional Chinese herbal formulas for sleep or mild anxiety

Common dosing range

9–15 g/day dried sclerotium (decoction) or 500 mg–3 g/day extract

When to expect effects

1–4 weeks

Watch out for

quality and species-substitution concerns in commercial products

What is it

Poria mushroom ( Poria cocos , also classified as Wolfiporia extensa or Wolfiporia cocos ), known as Fu Ling in Traditional Chinese Medicine and bukuryo in Japanese Kampo, is a saprophytic fungus that grows on pine roots and produces large underground sclerotia which are the medicinal portion. Used for over 2000 years in East Asian medicine as a tonic and diuretic and as a constituent of numerous classical herbal formulas, the sclerotium contains triterpene acids (pachymic, polyporenic, dehydrotumulosic, eburicoic acids), beta-glucans and other polysaccharides (pachymaran), ergosterol, and amino acids. Modern research focuses on immunomodulatory, diuretic, anxiolytic, and antitumour effects of standardised extracts and isolated triterpenoid fractions.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if

You are using a traditional formula (e.g., Suan Zao Ren Tang) under a practitioner
You accept that evidence is largely traditional

Probably skip if

You want a single-ingredient remedy with RCT support
You expect a reliable diuretic, immune, or metabolic effect
You cannot verify product species/quality

Evidence at a glance

insomnia and mild anxiety as a formula component

Mixed Evidence
Effect
Uncertain
Best fit
people using traditional multi-herb formulas containing Poria
Time
1–4 weeks

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

insomnia and mild anxiety as a formula component

Supplement benefit
Mixed Evidence

Poria is a long-standing component of traditional Chinese formulas (such as Suan Zao Ren Tang) used for sleep and mild anxiety, with effects reported after 14 weeks. Evidence comes mainly from formula-level traditional use and small studies rather than rigorous single-ingredient trials, so the specific contribution of Poria is unclear.

Effect size
Uncertain
Time to effect
1–4 weeks
Best fit
people using traditional multi-herb formulas containing Poria
Less likely
people seeking a standalone, well-quantified sleep aid

Bottom line: Plausible traditional support for sleep and mild anxiety, but not validated as a single ingredient.

Evidence is mixed

Most data reflect whole formulas; isolating Poria's effect is not well established.

How to take it

1. Typical dose
9–15 g/day dried sclerotium in decoction (traditional) or 500 mg–3 g/day standardized extract
2. Timing
no established optimal time; typically within a multi-herb formula
3. With food
either
4. How long to try
1–4 weeks of consistent use in traditional formulas before judging

What to track

sleep quality
anxiety/tension
GI tolerance

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

mild GI upsetdiuretic-related effects with chronic high doses

Who should avoid it

  • pregnant or breastfeeding women (inadequately studied)
  • people unable to verify product species/quality

Pregnancy & breastfeeding

Generally avoided in pregnancy and lactation due to inadequate safety data.

Interactions

diureticsMinor

theoretical additive diuretic effect

anticoagulantsMinor

some triterpene acids may have mild platelet-modulating effects; clinical relevance unclear

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for

verified species (Poria cocos / Wolfiporia)
standardized polysaccharide or triterpene content
reputable supplier with identity testing

Be skeptical of

antitumor or cancer-treatment claims
guaranteed sleep or anxiety cure
strong diuretic/weight-loss claims

References by claim

insomnia and mild anxiety as a formula component

Zhang et al., 2022PubMed (2022) link

Kim et al., 2022PMC (2022) link

Track Poria Mushroom with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

Coming to App Store
Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.