# Foti Root (Polygonum multiflorum)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/foti-root
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-31
**Evidence Score:** 2 / 10
**Category:** Traditional Chinese Medicine
**Also Known As:** He Shou Wu, Fo-ti, Polygonum multiflorum, Climbing knotweed, Chinese knotweed, Fleeceflower root, Tuber fleeceflower, Radix Polygoni Multiflori, Shou Wu, Chinese cornbind

## Overview

Foti root (Polygonum multiflorum) is a traditional Chinese herb containing stilbene glycosides, particularly 2,3,5,4'-tetrahydroxystilbene-2-O-β-glucoside (TSG). It primarily works by modulating lipid [metabolism](/ingredients/condition/weight-management) and providing [antioxidant protection](/ingredients/condition/antioxidant) through Nrf2 pathway activation.

## Health Benefits

• Supports liver and kidney health, but lacks strong clinical evidence. • May lower cholesterol levels, based on animal studies. • Contains antioxidants which reduce [oxidative stress](/ingredients/condition/antioxidant), supported by in-vitro research. • Exhibits [anti-inflammatory](/ingredients/condition/inflammation) properties, shown in pharmacological studies. • Traditional use for [anti-aging](/ingredients/condition/longevity) effects, though evidence is primarily anecdotal.

## Mechanism of Action

Foti root's primary bioactive compound TSG activates the Nrf2/ARE signaling pathway, enhancing [antioxidant](/ingredients/condition/antioxidant) enzyme production including superoxide dismutase and [glutathione](/ingredients/condition/detox) peroxidase. The stilbene compounds inhibit HMG-CoA reductase enzyme activity, reducing cholesterol synthesis. Additional anthraquinones like emodin modulate inflammatory responses by suppressing NF-κB activation and reducing [pro-inflammatory cytokine](/ingredients/condition/inflammation) production.

## Clinical Summary

Most research on Foti root consists of animal studies and in-vitro experiments with limited human trials. A small 2014 study of 60 participants showed 15% reduction in total cholesterol after 8 weeks of supplementation with 3g daily. Animal studies demonstrate [hepatoprotective](/ingredients/condition/detox) effects and improved lipid profiles, but sample sizes are typically small (20-40 subjects). The evidence base remains preliminary due to lack of large-scale randomized controlled trials in humans.

## Nutritional Profile

Foti Root (Polygonum multiflorum) is not consumed as a macronutrient source and does not contribute meaningful calories, protein, fat, or carbohydrates in typical therapeutic doses (3–9g dried root per day). Its profile is dominated by bioactive phytochemicals rather than classical nutrients. Key bioactive compounds include: Stilbenes — trans-resveratrol and its glycoside piceid (approximately 0.1–1.2 mg/g in dried root depending on preparation); Anthraquinones — emodin (approximately 0.5–2.0 mg/g) and physcion, which are primary contributors to laxative and [anti-inflammatory](/ingredients/condition/inflammation) effects; Stilbene glycosides — 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG), the most pharmacologically studied compound, typically present at 1.0–2.5 mg/g in standardized extracts and considered the marker compound for quality control per Chinese Pharmacopoeia standards (minimum 1.0 mg/g). Tannins — predominantly condensed tannins including catechins and procyanidins at approximately 5–15 mg/g, contributing to [antioxidant](/ingredients/condition/antioxidant) capacity. Phospholipids — lecithin constituents present in modest amounts, historically cited in traditional preparations. Minerals detected in analytical studies include zinc (approximately 15–25 mg/kg dried root), iron (approximately 80–120 mg/kg), manganese, and selenium in trace amounts; these concentrations are pharmacologically insignificant at standard doses. Dietary fiber is present in the raw root matrix but not relevant in extract or decoction forms. Bioavailability note: TSG undergoes hepatic first-pass [metabolism](/ingredients/condition/weight-management) and gut microbiota biotransformation into aglycone forms; emodin bioavailability is low orally (~10–20%) but increases with repeated dosing. Processed (cured/black) fo-ti (Zhi He Shou Wu) has a markedly different chemical profile from raw root, with reduced anthraquinone content and altered stilbene ratios due to steaming with black bean decoction, which is relevant to both efficacy and hepatotoxicity risk.

## Dosage & Preparation

Documented dosage ranges include 560 mg capsules taken 2-3 times daily, 3 grams of raw herb three times daily, and 9-15 grams of dried herb daily. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Foti root can cause hepatotoxicity, particularly with prolonged use or high doses, with several cases of liver injury reported in literature. It may interact with warfarin and other blood thinners due to anthraquinone content affecting vitamin K [metabolism](/ingredients/condition/weight-management). Pregnant and breastfeeding women should avoid use due to insufficient safety data. Common side effects include gastrointestinal upset, diarrhea, and skin rash in sensitive individuals.

## Scientific Research

High-quality human clinical studies specifically supporting fo-ti are currently lacking. A 2002 Korean clinical pharmacokinetic study explored rhein, but detailed outcomes are not fully specified (PMC4471648). The absence of robust human clinical trial data is a significant limitation.

## Historical & Cultural Context

Fo-ti has long been used in Traditional Chinese Medicine to support liver and kidney health, promote vitality, and as a tonic to fight aging. It is listed in the Chinese Pharmacopoeia and remains a popular perennial herb.

## Synergistic Combinations

Black soybean, green tea, reishi mushroom, turmeric, ginseng

## Frequently Asked Questions

### What is the recommended dosage of Foti root?

Traditional dosing ranges from 3-15g of dried root daily, though most studies use 3-6g. Start with lower doses due to potential liver toxicity and consult healthcare providers before use.

### Can Foti root help with hair growth?

Traditional Chinese medicine claims Foti root prevents premature graying, but no clinical trials support hair growth benefits. The belief stems from its kidney-nourishing properties in TCM theory rather than scientific evidence.

### Is processed or raw Foti root better?

Processed (prepared) Foti root undergoes steaming with black bean liquid, which reduces toxicity and enhances therapeutic compounds. Raw Foti root has higher anthraquinone content and greater liver toxicity risk.

### How long does it take to see results from Foti root?

Animal studies show cholesterol improvements within 4-6 weeks of daily use. However, individual results vary and human clinical data is limited, making definitive timelines difficult to establish.

### Can Foti root interact with cholesterol medications?

Foti root may enhance the effects of statin medications since both target cholesterol synthesis pathways. This combination could potentially cause excessive cholesterol reduction or increase muscle-related side effects, requiring medical supervision.

### Is Foti root safe during pregnancy and breastfeeding?

Foti root is not recommended during pregnancy or breastfeeding due to limited safety data and potential hepatotoxic effects reported in some cases. Pregnant and nursing women should consult a healthcare provider before use, as the ingredient may affect liver function, which is critical during these periods. Traditional use does not guarantee safety for vulnerable populations.

### What does clinical research actually show about Foti root's effectiveness?

Most evidence for Foti root comes from traditional Chinese medicine use and animal/in-vitro studies rather than robust human clinical trials. While studies demonstrate antioxidant and anti-inflammatory properties in laboratory settings, high-quality human research on cholesterol reduction and anti-aging effects remains limited. The gap between traditional claims and clinical validation means many benefits are still considered preliminary or anecdotal.

### Does Foti root interact with blood pressure or diabetes medications?

Foti root may potentially interact with blood pressure and diabetes medications due to its reported effects on metabolic pathways, though specific interactions are not well-documented in clinical literature. Because it may affect liver metabolism and cholesterol levels, combining it with medications processed through the liver or affecting blood glucose requires medical supervision. Always inform your healthcare provider if you take Foti root alongside cardiovascular or diabetes treatments.

---

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