# Fo-Ti (Polygonum multiflorum)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/fo-ti
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 4 / 10
**Category:** Traditional Chinese Medicine
**Also Known As:** Polygonum multiflorum, Fallopia multiflora, He Shou Wu, Chinese Knotweed, Tuber Fleeceflower, Multiflower Knotweed, Chinese Cornbind, Climbing Knotweed

## Overview

Fo-ti (Polygonum multiflorum) contains bioactive compounds including tetrahydroxystilbene glucoside (TSG) and emodin that demonstrate [anti-inflammatory](/ingredients/condition/inflammation) and [neuroprotective](/ingredients/condition/cognitive) properties. TSG modulates PPAR-gamma signaling while emodin inhibits acetylcholinesterase enzyme activity.

## Health Benefits

• [Anti-inflammatory](/ingredients/condition/inflammation) effects: TSG and emodin compounds decrease inflammation by increasing PPAR-gamma and decreasing NF-kB signaling (evidence from in vitro studies only)
• Cognitive support: Emodin inhibits [acetylcholine](/ingredients/condition/cognitive)sterase and may reduce amyloid plaque formation (evidence from test tube studies only)
• Cardiovascular protection: TSG prevented atherosclerosis by reducing blood lipids and suppressing inflammation in animal models (no human clinical evidence)
• Immune stimulation: Sugars and anthraquinone glycosides stimulate T cells, B cells, and natural killer cells (in vitro evidence only)
• Lipid reduction: One small human trial (n=42) using an herbal mixture containing Fo-Ti showed reduced [LDL cholesterol](/ingredients/condition/heart-health) and triglycerides, though other ingredients likely contributed

## Mechanism of Action

TSG (tetrahydroxystilbene glucoside) activates PPAR-gamma receptors while suppressing NF-kB inflammatory signaling pathways. Emodin inhibits [acetylcholine](/ingredients/condition/cognitive)sterase enzyme activity and may interfere with amyloid-beta plaque formation through antioxidant mechanisms. These compounds work synergistically to reduce [oxidative stress](/ingredients/condition/antioxidant) and neuro[inflammation](/ingredients/condition/inflammation) at the cellular level.

## Clinical Summary

Current research on fo-ti is limited to in vitro and animal studies, with no robust human clinical trials available. Laboratory studies show TSG reduces [inflammatory](/ingredients/condition/inflammation) markers by 40-60% in cell cultures at concentrations of 10-50 μM. Emodin demonstrates [acetylcholine](/ingredients/condition/cognitive)sterase inhibition with IC50 values around 25 μg/mL in test tube studies. Human clinical evidence is needed to confirm therapeutic effects and optimal dosing protocols.

## Nutritional Profile

Fo-Ti (Polygonum multiflorum) is not consumed for macronutrient value but rather for its bioactive phytochemical profile. Key compounds include: • **Stilbenes**: 2,3,5,4'-Tetrahydroxystilbene-2-O-β-D-glucoside (TSG) is the principal bioactive, typically standardized at 1.0–5.0% in dried root preparations and up to 10–15% in concentrated extracts; possesses [antioxidant](/ingredients/condition/antioxidant) and [anti-inflammatory](/ingredients/condition/inflammation) activity. • **Anthraquinones**: Emodin (0.1–1.5% in raw root, higher in processed forms), chrysophanol, rhein, and physcion; these contribute to laxative effects and enzyme-inhibitory bioactivities. Processing (steaming with black bean juice, 'Zhi He Shou Wu') significantly alters the emodin-to-TSG ratio, reducing free anthraquinone content and increasing combined/bound anthraquinone glycosides. • **Tannins**: Condensed tannins including catechin and epicatechin derivatives (approximately 1–5% of dry weight); contribute to astringent and antioxidant properties but may reduce bioavailability of co-consumed minerals. • **Phospholipids**: Lecithin present in modest amounts (~1.2–2.0%), historically credited with some of the herb's cholesterol-modulating claims. • **Polysaccharides**: Crude polysaccharides approximately 4–8% of dry weight; may contribute to [immunomodulatory](/ingredients/condition/immune-support) effects. • **Minerals**: Contains trace amounts of iron, zinc, manganese, and selenium, though concentrations vary widely with soil and growing conditions (iron ~50–200 mg/kg dry weight; zinc ~15–60 mg/kg). • **Vitamins**: No significant vitamin content documented. • **Other phenolics**: Gallic acid, protocatechuic acid, and catechin in minor concentrations (<0.5%). • **Bioavailability notes**: TSG has moderate oral bioavailability in animal models (~20–30%), partially metabolized by gut microbiota into the aglycone form (resveratrol analogue). Emodin has poor oral bioavailability (~7–10% in rats) due to extensive first-pass glucuronidation and sulfation. Processing ('Pao Zhi') is traditionally required to reduce hepatotoxic free anthraquinone levels; raw (unprocessed) root carries higher risk of liver injury. Tannin content may chelate dietary minerals and reduce their absorption if taken with meals.

## Dosage & Preparation

The research does not provide specific clinically studied dosage ranges for different forms of Fo-Ti or standardization protocols used in human studies. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Fo-ti, particularly processed forms, may cause hepatotoxicity in susceptible individuals, with several case reports of liver injury. Raw fo-ti contains higher levels of anthraquinones that can cause gastrointestinal upset and diarrhea. It may interact with medications metabolized by cytochrome P450 enzymes and could potentiate anticoagulant effects. Pregnant and breastfeeding women should avoid fo-ti due to insufficient safety data and potential hormonal effects.

## Scientific Research

Clinical evidence for Fo-Ti in humans is severely limited, with only one small trial of 42 participants using an herbal mixture containing Fo-Ti showing reduced [LDL cholesterol](/ingredients/condition/heart-health) and triglycerides. The vast majority of available evidence comes from in vitro (test tube) and animal studies rather than randomized controlled trials in humans. No PubMed PMIDs are provided in the available research for human clinical trials.

## Historical & Cultural Context

Fo-Ti has been used in traditional Chinese medicine for centuries for [anti-aging](/ingredients/condition/longevity) effects, [immune support](/ingredients/condition/immune-support), and general health promotion. The herb traditionally exhibits a wide spectrum of anecdotal pharmacological effects including anti-aging, immunologic, [neuroprotective](/ingredients/condition/cognitive), anticancer, and [anti-inflammatory](/ingredients/condition/inflammation) properties.

## Synergistic Combinations

Milk thistle, NAC (N-acetylcysteine), Alpha-lipoic acid, Green tea extract, Resveratrol

## Frequently Asked Questions

### What is the difference between raw and processed fo-ti?

Raw fo-ti contains higher anthraquinone levels and is more likely to cause digestive upset, while processed fo-ti (cured with black bean liquid) has reduced anthraquinone content and is traditionally considered safer for long-term use.

### How much fo-ti should I take daily?

Traditional dosing ranges from 3-15 grams of processed root daily, but no standardized clinical dosing exists. Most commercial extracts suggest 500-1000mg daily, though human safety and efficacy data is limited.

### Can fo-ti cause liver damage?

Yes, fo-ti has been associated with hepatotoxicity in multiple case reports, particularly with raw preparations or high doses. Symptoms include elevated liver enzymes, jaundice, and in severe cases, acute liver failure requiring medical intervention.

### Does fo-ti actually reverse gray hair?

Despite traditional claims, there is no scientific evidence that fo-ti can reverse gray hair or restore natural hair color. Gray hair results from decreased melanin production, which fo-ti has not been proven to restore in humans.

### What medications interact with fo-ti?

Fo-ti may interact with warfarin and other anticoagulants, potentially increasing bleeding risk. It may also affect medications metabolized by liver enzymes including some statins, blood pressure medications, and diabetes drugs.

### Is fo-ti safe during pregnancy and breastfeeding?

Fo-ti is not recommended during pregnancy or breastfeeding due to insufficient safety data and its traditional use as a reproductive tonic, which raises concerns about hormonal effects. The liver concerns associated with fo-ti make it especially risky during these sensitive periods when liver function is critical. Pregnant and nursing women should consult their healthcare provider before considering fo-ti supplementation.

### What does the current clinical research actually show about fo-ti's effectiveness?

Most fo-ti research is limited to laboratory studies and animal models; human clinical trials are sparse and often of poor quality. While compounds in fo-ti like TSG and emodin show promise in test tubes for anti-inflammatory and cognitive effects, these results have not been consistently replicated in controlled human studies. The evidence for fo-ti's traditional uses, particularly for hair health and longevity, remains largely anecdotal rather than scientifically validated.

### Who should avoid fo-ti supplementation?

People with pre-existing liver disease, those taking hepatotoxic medications, and individuals with a history of adverse reactions to herbal supplements should avoid fo-ti. Additionally, those taking anticoagulants, anti-diabetic medications, or immunosuppressants should consult a healthcare provider due to potential interaction risks. Pregnant women, nursing mothers, and children should also avoid fo-ti until safety is better established.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*