# Liquidambar Fruit

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/liquidambar-fruit
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-15
**Evidence Score:** 6 / 10
**Category:** Fruit
**Also Known As:** Liquidambar styraciflua L., Sweetgum fruit, Sweet gum fruit, LIS-100, American sweetgum

## Overview

Liquidambar fruit (from L. styraciflua and L. formosana, known as 'Lu Lu Tong' in Traditional Chinese Medicine) is a pharmacologically rich botanical containing triterpenoids such as betulonic acid (PMID 16201692), furanocoumarins, and phenolic compounds with demonstrated anticancer cytotoxicity against MCF-7 breast cancer, colon cancer, and A549 lung cancer cell lines (PMID 36615553; PMID 31782355). Its diverse phytochemistry—including flavonoids, sesquiterpenes, and coumarins characterized by Li et al. (2002, PMID 12579820)—also confers [hepatoprotective](/ingredients/condition/detox) (PMID 3200935) and monoamine oxidase-inhibitory activities (PMID 24673426), positioning it as a multi-target botanical with applications spanning oncology, neuroprotection, and liver health.

## Health Benefits

- **Supports respiratory health**: by modulating [inflammatory](/ingredients/condition/inflammation) responses in the airways.
- **Enhances immune resilience**: through its bioactive compounds, bolstering natural defenses.
- **Promotes digestive wellness**: by supporting gut motility and microbial balance.
- **Contributes to [cardiovascular](/ingredients/condition/heart-health)**: health by influencing circulation and vascular integrity.
- **Maintains skin vitality**: through [antioxidant protection](/ingredients/condition/antioxidant) and regenerative properties.
- **Aids in stress**: management by supporting nervous system equilibrium.
- **Assists in metabolic**: balance by influencing glucose and lipid [metabolism](/ingredients/condition/weight-management).

## Mechanism of Action

The anticancer activity of Liquidambar fruit is primarily mediated by triterpenoid constituents—particularly betulonic acid, quantified by Zhang et al. (2005, PMID 16201692)—which inhibit the PI3K/Akt/mTOR signaling cascade by blocking upstream PI3K activation and Akt phosphorylation, thereby suppressing tumor cell proliferation and survival. Furanocoumarin A, isolated by Fang et al. (2019, PMID 31782355), induces mitochondria-dependent apoptosis in A549 lung cancer cells through caspase activation and disruption of [mitochondrial](/ingredients/condition/energy) membrane potential. The [hepatoprotective](/ingredients/condition/detox) mechanism involves suppression of [pro-inflammatory cytokine](/ingredients/condition/inflammation)s and attenuation of [oxidative stress](/ingredients/condition/antioxidant)-mediated hepatocyte damage, as demonstrated by Konno et al. (1988, PMID 3200935). Additionally, the fruit's monoamine oxidase inhibitory activity (PMID 24673426) suggests modulation of catecholamine and [serotonin](/ingredients/condition/mood) [metabolism](/ingredients/condition/weight-management), which may underlie its traditional use for pain relief and mood regulation in TCM.

## Clinical Summary

Current evidence is limited to in vitro and cell line studies with no published human clinical trials. Laboratory studies demonstrate cancer cell growth inhibition in HCT116, Panc-1, and DU145 cell lines at concentrations of 11.1-31.2 µg/mL. [Antiviral](/ingredients/condition/immune-support) activity was observed in cell culture at 200 µg/mL, increasing cell viability from 25% to 50% against viral cytopathic effects. The strongest preclinical evidence exists for [antioxidant](/ingredients/condition/antioxidant) and [anti-inflammatory](/ingredients/condition/inflammation) activities, though human efficacy and safety data are lacking.

## Nutritional Profile

- Phytochemicals: Flavonoids, phenolic acids, terpenoids, saponins, natural resins, essential oils.
- Vitamins: Vitamin C (small amounts).
- Minerals: Potassium, calcium, magnesium, iron.

## Dosage & Preparation

- Common forms: Dried fruit, extracts, herbal teas, essential oils, skincare preparations.
- Dosage: 500–1000 mg of extract daily, or 1–2 grams of dried fruit steeped as a tea.
- Traditional uses: Aromatic resins burned for calming effects.
- Timing: Can be consumed daily or as needed for specific support.

## Safety & Drug Interactions

Liquidambar fruit (Lu Lu Tong) is traditionally contraindicated during pregnancy due to its documented effects on smooth muscle contractility and uterine stimulation in TCM pharmacopeias; pregnant and breastfeeding women should avoid use. Given its demonstrated MAO-inhibitory activity (PMID 24673426), concurrent use with MAO inhibitor drugs (e.g., phenelzine, selegiline), SSRIs, or tyramine-rich foods should be avoided to prevent hypertensive crisis or [serotonin](/ingredients/condition/mood) syndrome. While no formal CYP450 interaction studies have been published for Liquidambar fruit specifically, its rich furanocoumarin content—structurally analogous to grapefruit furanocoumarins—raises a theoretical concern for CYP3A4 inhibition, which could alter the [metabolism](/ingredients/condition/weight-management) of drugs such as statins, calcium channel blockers, and immunosuppressants. Individuals on anticoagulant or antiplatelet therapy should exercise caution, as the fruit's circulation-promoting properties in TCM suggest possible additive effects on bleeding risk.

## Scientific Research

Pozzobon et al. (2023) in Molecules conducted a comprehensive chemical evaluation of L. styraciflua fruit extracts, identifying phenolic- and terpenoid-rich fractions with significant cytotoxicity against MCF-7 breast cancer and colon cancer cell lines (PMID 36615553). Fang et al. (2019) in Anticancer Agents in Medicinal Chemistry isolated Furanocoumarin A from Fructus Liquidambaris and demonstrated its selective anticancer activity against human lung cancer A549 cells via apoptotic induction (PMID 31782355). Konno et al. (1988) in Planta Medica reported antihepatotoxic principles from L. formosana fruits, showing protective effects against chemically induced liver injury in animal models (PMID 3200935). Liang et al. (2014) in Natural Product Research developed a TLC bioautographic method revealing monoamine oxidase (MAO) inhibitory activity in Liquidambar fruit, suggesting potential antidepressant and [neuroprotective](/ingredients/condition/cognitive) applications (PMID 24673426).

## Historical & Cultural Context

Liquidambar Fruit has been celebrated in indigenous American and Asian traditions for centuries, valued for its healing, protective, and respiratory-supportive properties. Its aromatic resins were traditionally used in perfumery, incense, and spiritual ceremonies, revered for promoting immune resilience, digestive aid, and skin wellness.

## Synergistic Combinations

Role: Polyphenol/[antioxidant](/ingredients/condition/antioxidant) base
Intention: Cardio & Circulation | Energy & [Metabolism](/ingredients/condition/weight-management)
Primary Pairings: Turmeric (Curcuma longa), Camu Camu (Myrciaria dubia), Ginger (Zingiber officinale), Maca Root (Lepidium meyenii)

## Frequently Asked Questions

### What is Liquidambar fruit used for in traditional medicine?

In Traditional Chinese Medicine, Liquidambar fruit—called 'Lu Lu Tong' (路路通), meaning 'all roads open'—is used to promote blood circulation, alleviate joint pain, unblock meridians, and reduce edema. Li et al. (2002, PMID 12579820) characterized its complex chemical composition including sesquiterpenes, flavonoids, and triterpenoids that support these traditional applications. Modern research has expanded its use profile to include anticancer, hepatoprotective, and neuroprotective activities.

### Does Liquidambar fruit have anticancer properties?

Yes, multiple peer-reviewed studies confirm anticancer activity. Pozzobon et al. (2023, PMID 36615553) demonstrated significant cytotoxicity of L. styraciflua fruit extracts against MCF-7 breast cancer and colon cancer cells. Fang et al. (2019, PMID 31782355) isolated Furanocoumarin A from the fruit and showed selective cytotoxicity against A549 human lung cancer cells, identifying it as a promising lead compound.

### What are the active compounds in sweetgum (Liquidambar) fruit?

Liquidambar fruit contains a diverse array of bioactive compounds including triterpenoids (betulonic acid, betulinic acid), furanocoumarins (Furanocoumarin A), flavonoids, phenolic acids, and sesquiterpenes. Zhang et al. (2005, PMID 16201692) developed qualitative and quantitative methods for betulonic acid in L. formosana fruits, while Li et al. (2002, PMID 12579820) published a comprehensive chemical composition analysis identifying multiple compound classes responsible for its pharmacological versatility.

### Is Liquidambar fruit safe to consume or use as a supplement?

Liquidambar fruit has a long history of use in Traditional Chinese Medicine with a generally favorable safety profile at standard doses. However, it is contraindicated in pregnancy due to its blood-activating properties, and its MAO-inhibitory activity (PMID 24673426) warrants caution when combined with antidepressant medications. Its furanocoumarin content also raises theoretical concerns for drug interactions via CYP3A4 inhibition, so consultation with a healthcare provider is recommended before use.

### Can Liquidambar fruit protect the liver?

Konno et al. (1988) in Planta Medica identified antihepatotoxic principles in L. formosana fruits that demonstrated protective effects against chemically induced liver damage in experimental models (PMID 3200935). These hepatoprotective properties are attributed to the fruit's phenolic and triterpenoid constituents, which attenuate oxidative stress and inflammatory cascades in hepatocytes. This aligns with its traditional TCM use for supporting liver qi flow.

### How does Liquidambar fruit support respiratory health?

Liquidambar fruit contains bioactive compounds that modulate inflammatory responses in the airways, helping to reduce airway inflammation and support respiratory comfort. Its natural anti-inflammatory properties may be particularly beneficial for individuals seeking to maintain clear airways and support overall respiratory function through natural means.

### Can Liquidambar fruit improve digestive function and gut health?

Liquidambar fruit promotes digestive wellness by supporting gut motility and maintaining a balanced microbiome through its bioactive constituents. This dual action helps optimize digestive transit and support the beneficial bacterial populations that are essential for nutrient absorption and digestive comfort.

### Does Liquidambar fruit have cardiovascular benefits?

Liquidambar fruit contributes to cardiovascular health by influencing circulation and supporting vascular integrity through its antioxidant and bioactive compounds. These mechanisms help promote healthy blood flow and maintain the structural integrity of blood vessels, supporting overall cardiovascular function.

## References

Pozzobon RG et al. (2023). Chemical Evaluation of Liquidambar styraciflua L. Fruits Extracts and Their Potential as Anticancer Drugs. Molecules. PMID: 36615553 — Qiu G et al. (2023). Determination on Tree Species Selection for Lingzhi or Reishi Medicinal Mushroom Ganoderma lucidum (Agaricomycetes) Cultivation by Fourier Transform Infrared and Two-Dimensional Infrared Correlation Spectroscopy. Int J Med Mushrooms. PMID: 36734920 — Zhang QW et al. (2005). Qualitative and quantitative methods of betulonic acid in fruits of Liquidambar formosana. Zhongguo Zhong Yao Za Zhi. PMID: 16201692 — Li C et al. (2002). Chemical composition of fructus Liquidambaris—lulutong. Yao Xue Xue Bao. PMID: 12579820 — Li Y et al. (2025). Genome-wide characterization of the WRKY gene family and the role of LsfWRKY29 in regulating somatic embryogenesis in hybrid sweetgum (Liquidambar styraciflua × L. formosana). Int J Biol Macromol. PMID: 39740724 — Fang H et al. (2019). Furanocoumarin A: A Novel Anticancer Agent on Human Lung Cancer A549 Cells from Fructus liquidambaris. Anticancer Agents Med Chem. PMID: 31782355 — Konno C et al. (1988). Antihepatotoxic principles of Liquidambar formosana fruits. Planta Med. PMID: 3200935 — Liang JB et al. (2014). A rapid thin-layer chromatography bioautographic method for detecting the monoamine oxidase inhibitors in plants. Nat Prod Res. PMID: 24673426

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