# Cat's Claw

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/cat-s-claw
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-15
**Evidence Score:** 8 / 10
**Category:** Other
**Also Known As:** Uncaria tomentosa, Una de gato, Cat's claw vine, Paraguayo

## Overview

Cat's claw (Uncaria tomentosa) contains oxindole alkaloids and quinovic acid glycosides that suppress TNFα production and inhibit NF-κB activation in [inflammatory pathway](/ingredients/condition/inflammation)s. Proanthocyanidin B2, the main bioactive compound, demonstrates the highest molecular binding affinity at -9.2 kcal/mol.

## Health Benefits

- Supports immune health by enhancing [white blood cell](/ingredients/condition/immune-support) function and modulating immune responses through its oxindole alkaloids.
- Reduces [oxidative stress](/ingredients/condition/antioxidant) and protects cellular health via its rich antioxidant profile of polyphenols and flavonoids.
- Exerts potent [anti-inflammatory](/ingredients/condition/inflammation) effects, supporting joint health and mobility, particularly in conditions like arthritis.
- Aids [digestive health](/ingredients/condition/gut-health) by protecting the intestinal lining and promoting a balanced gut microbiome.
- Exhibits [neuroprotective effect](/ingredients/condition/cognitive)s, enhancing cognitive function by reducing neuroinflammation and supporting neural communication.
- Contributes to healthy DNA repair mechanisms, providing broad-spectrum cellular protection and promoting [longevity](/ingredients/condition/longevity).
- Supports detoxification through liver-supportive properties and demonstrates antiviral activity.

## Mechanism of Action

Cat's claw's non-alkaloid fractions suppress LPS-induced TNFα production in RAW 264.7 cells at concentrations of 0.001-1 µg/ml (P < 0.01). The primary mechanisms involve inhibition of NF-κB activation and reduction of IL-6 [inflammatory](/ingredients/condition/inflammation) cytokines, while oxindole alkaloids like speciophylline demonstrate strong molecular binding affinity (-8.1 kcal/mol). Proanthocyanidin B2, the main bioactive component, exhibits the highest docking score at -9.2 kcal/mol.

## Clinical Summary

Controlled clinical studies have demonstrated pain reduction in patients with chronic inflammatory disorders, though evidence remains limited and varies significantly by preparation type. In vivo studies have reported decreased IL-6 and NF-κB levels, improving chronic inflammation parameters in research by Aguilar et al. (2002) and Sandoval et al. (2002). Current clinical evidence is insufficient for definitive [anti-inflammatory](/ingredients/condition/inflammation) conclusions due to preparation-dependent variability and limited human trial data. Most supporting research consists of in vitro and animal studies rather than large-scale human clinical trials.

## Nutritional Profile

- Oxindole Alkaloids: Stimulate [immune function](/ingredients/condition/immune-support) and support neural health.
- Quinovic Acid Glycosides: Provide [anti-inflammatory](/ingredients/condition/inflammation) and antiviral properties.
- Polyphenols and Flavonoids: Offer potent [antioxidant protection](/ingredients/condition/antioxidant) against oxidative stress.
- Triterpenes: Enhance [liver detox](/ingredients/condition/detox)ification pathways and contribute to cellular regulation.
- Proanthocyanidins: Support [cognitive](/ingredients/condition/cognitive) clarity and [skin health](/ingredients/condition/skin-health).
- Minerals: Contains calcium, potassium, and magnesium, supporting bone, muscle, and [cardiovascular health](/ingredients/condition/heart-health).

## Dosage & Preparation

- Traditional Use: Indigenous Amazonian tribes brewed the inner bark into teas or decoctions for arthritis, digestive issues, and respiratory conditions.
- Modern Forms: Available in capsules, tinctures, and teas, often in wellness blends for immune and joint support.
- Tea Preparation: Brew 1–2 grams of dried bark in boiling water for 10–15 minutes.
- Recommended Dosage: 250–350 mg of standardized extract daily for immune and [joint health](/ingredients/condition/inflammation) support.

## Safety & Drug Interactions

Cat's claw extracts exhibit low toxicity in acute oral animal tests and in vitro cellular assays according to multiple reviewed studies. No specific drug interactions or contraindications are documented in current research, though effects vary significantly by preparation type. Standardization is recommended due to unknown substances that may influence biological activity and therapeutic outcomes. Safety data during pregnancy and lactation is not established, requiring caution in these populations.

## Scientific Research

Numerous in vitro and animal studies, alongside some human clinical trials, have highlighted Cat's Claw's antioxidative, [immunomodulatory](/ingredients/condition/immune-support), and [anti-inflammatory](/ingredients/condition/inflammation) actions, particularly for joint health. Emerging research also investigates its [neuroprotective effect](/ingredients/condition/cognitive)s and potential role in supporting DNA repair mechanisms, validating its broad traditional applications.

## Historical & Cultural Context

Cat's Claw has been revered for centuries by indigenous Amazonian cultures, including Peruvian and Brazilian tribes, for its profound healing and protective properties. It was central to traditional medicine, used to treat [inflammatory](/ingredients/condition/inflammation) conditions, digestive disorders, and infections, and held spiritual significance in ceremonies for cleansing the body and spirit.

## Synergistic Combinations

Role: Polyphenol/[antioxidant](/ingredients/condition/antioxidant) base
Intention: Immune & [Inflammation](/ingredients/condition/inflammation) | Cognition & Focus
Primary Pairings: - Turmeric (Curcuma longa)
- Ginger (Zingiber officinale)
- Ashwagandha (Withania somnifera)
- Lion's Mane (Hericium erinaceus)

## Frequently Asked Questions

### What are the main active compounds in cat's claw?

Cat's claw contains oxindole alkaloids (speciophylline), quinovic acid glycosides, polyhydroxylated triterpenes (uncaric acid, floridic acid), and proanthocyanidins. Proanthocyanidin B2 is the main bioactive component with the highest molecular binding affinity at -9.2 kcal/mol.

### How does cat's claw reduce inflammation?

Cat's claw suppresses TNFα production in immune cells at concentrations of 0.001-1 µg/ml and inhibits NF-κB activation, a key inflammatory pathway. It also reduces IL-6 cytokine levels while not significantly affecting IL-1, IL-10, or TNF-α in certain extract preparations.

### Is cat's claw safe to take daily?

Cat's claw extracts show low toxicity in animal studies and cellular assays, suggesting good safety profile. However, effects vary significantly by preparation type, and no specific dosing guidelines or long-term safety data are established for daily use.

### What conditions does cat's claw help with?

Clinical studies show cat's claw reduces pain in chronic inflammatory disorders and supports joint health, particularly in arthritis conditions. Research also indicates benefits for immune function enhancement and digestive health, though evidence quality varies by condition.

### Can cat's claw interact with medications?

No specific drug interactions are documented in current research literature for cat's claw. However, due to its immunomodulatory effects and variable preparation compositions, consultation with healthcare providers is recommended before combining with medications.

### What is the difference between cat's claw extract and cat's claw powder?

Cat's claw extract is concentrated through processing to isolate active alkaloids and polyphenols, typically delivering higher potency per dose compared to whole powder. Extracts are often standardized to specific alkaloid percentages, making dosing more consistent, while powders contain the full plant material with variable alkaloid concentrations depending on growing conditions and plant part used. Extracts are generally preferred for targeted therapeutic benefits, though some prefer powders for their whole-food approach.

### Who should avoid taking cat's claw?

Pregnant and nursing women should avoid cat's claw due to insufficient safety data and potential uterine stimulating effects. Individuals with autoimmune conditions like lupus or rheumatoid arthritis should consult a healthcare provider before use, as cat's claw modulates immune function and may affect disease progression. People scheduled for surgery should discontinue use 2 weeks prior, as cat's claw may have mild blood-thinning properties.

### How much clinical research supports cat's claw's effectiveness?

Multiple peer-reviewed studies demonstrate cat's claw's efficacy for osteoarthritis and rheumatoid arthritis, with improvements in joint pain and swelling observed in several randomized controlled trials. Research supports its immune-enhancing and antioxidant properties, though many studies involve relatively small sample sizes. While the evidence is promising and growing, larger, longer-term clinical trials would further strengthen the scientific foundation for its traditional uses.

## References

Sources: https://pubmed.ncbi.nlm.nih.gov/35381245; https://www.sciencedirect.com/science/article/pii/S1756464620303759; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7598783/

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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