# Chicken Sternum Cartilage (Gallus gallus domesticus)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/chicken-sternum-cartilage
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-25
**Evidence Score:** 2 / 10
**Category:** Protein
**Also Known As:** Gallus gallus domesticus sternum cartilage, Chicken sternal cartilage, Avian cartilage extract, Poultry sternum matrix, Chicken breastbone cartilage, Sternal chondroitin complex, Gallus cartilage supplement

## Overview

Chicken sternum cartilage is a rich source of undenatured type II collagen (UC-II), chondroitin sulfate, and hyaluronic acid that supports joint health by modulating immune-mediated cartilage degradation through oral tolerization. Clinical evidence demonstrates it significantly reduces osteoarthritis pain and improves joint function by suppressing [pro-inflammatory cytokine](/ingredients/condition/inflammation)s such as IL-1β and TNF-α in synovial tissue.

## Health Benefits

• Reduces osteoarthritis pain by up to 56.2% based on randomized controlled trial evidence (PMID: 22486722)
• Improves joint function and mobility with significant WOMAC score improvements in clinical studies
• Decreases joint stiffness, particularly effective in non-severe cases (95% CI, p=0.032)
• Promotes [bone mineral density](/ingredients/condition/bone-health) through osteoblast activation in preclinical studies
• Supports extracellular matrix health via collagen type II and glycosaminoglycan content

## Mechanism of Action

Undenatured type II collagen (UC-II) from chicken sternum cartilage undergoes oral tolerization via Peyer's patches in the gut-associated lymphoid tissue, triggering regulatory [T-cell](/ingredients/condition/immune-support) activity that suppresses autoimmune attack on joint cartilage. This process downregulates [pro-inflammatory cytokine](/ingredients/condition/inflammation)s IL-1β, IL-6, and TNF-α, reducing matrix metalloproteinase (MMP) activity responsible for proteoglycan and collagen degradation in articular cartilage. Chondroitin sulfate present in the matrix additionally inhibits nuclear factor-kappa B (NF-κB) signaling, further attenuating synovial inflammation and promoting chondrocyte survival.

## Clinical Summary

A randomized, double-blind, placebo-controlled trial (PMID: 22486722) in 191 patients with knee osteoarthritis demonstrated that 40 mg/day of UC-II from chicken sternum cartilage reduced overall WOMAC pain scores by 56.2% versus 33.5% for a glucosamine-chondroitin combination after 180 days. Additional peer-reviewed studies confirm statistically significant improvements in WOMAC stiffness subscores, particularly in patients with non-severe osteoarthritis (95% CI, p=0.032). A separate investigation in healthy subjects with exercise-induced joint discomfort reported reduced knee pain and improved range of motion after 120 days of supplementation with 40 mg UC-II daily. While results are promising, most trials are industry-funded and involve moderate sample sizes, warranting independent large-scale replication before definitive clinical guidelines can be established.

## Nutritional Profile

Chicken Sternum Cartilage (Gallus gallus domesticus) is primarily composed of type II collagen (approximately 50-60% of dry weight), chondroitin sulfate (20-30% of dry weight), and hyaluronic acid (1-5% of dry weight), making it a concentrated source of joint-supportive glycosaminoglycans (GAGs). Protein content is high at approximately 60-70% of dry weight, predominantly as collagen-derived peptides rich in glycine (~33% of amino acid composition), proline (~13%), and hydroxyproline (~10%), which are poorly represented in standard dietary proteins. Chondroitin sulfate concentration is estimated at 200-400 mg per gram of dry cartilage extract, with bioavailability enhanced in native (undenatured) form — commercial standardized extracts (e.g., UC-II) typically deliver 10 mg undenatured type II collagen per 40 mg capsule. Hyaluronic acid content ranges from 10-50 mg per gram of dry weight depending on processing method. Calcium content is moderate at approximately 10-20 mg per gram due to partial mineralization of sternal cartilage. Phosphorus is present at approximately 5-10 mg per gram. Trace amounts of zinc (0.1-0.5 mg/g), magnesium (1-3 mg/g), and manganese (0.05-0.2 mg/g) are detectable, supporting enzymatic [collagen synthesis](/ingredients/condition/skin-health) pathways. Fat content is low at 1-5% of dry weight, primarily as phospholipids. Carbohydrate content, excluding GAG chains, is negligible (<2%). Bioavailability note: Undenatured (native) type II collagen is absorbed intact via gut-associated lymphoid tissue (GALT) and operates via oral tolerization mechanisms rather than direct substrate provision, making low doses (10 mg/day) clinically effective. Hydrolyzed forms provide collagen peptides (particularly Pro-Hyp and Hyp-Gly dipeptides) with molecular weights of 0.3-8 kDa, which are absorbed through intestinal epithelium and detected in plasma within 1-2 hours post-ingestion.

## Dosage & Preparation

Clinically studied dose: 2g/day of standardized hydrolyzed extract (BioCell Collagen) for 70 days in osteoarthritis patients. Safety studies in animals showed no toxicity at doses up to 1000mg/kg/day for 90 days. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Chicken sternum cartilage supplements are generally well tolerated at the clinically studied dose of 40 mg/day, with adverse event profiles comparable to placebo in controlled trials lasting up to six months. Individuals with poultry or egg allergies should exercise caution, as the product is derived from Gallus gallus domesticus and may trigger hypersensitivity reactions. No significant drug interactions have been formally established, though theoretical caution is advised when co-administering with anticoagulants such as warfarin, given the chondroitin sulfate component's potential mild antiplatelet effects. Safety data in pregnant or breastfeeding women and pediatric populations are insufficient, and use in these groups should be discussed with a healthcare provider before initiating supplementation.

## Scientific Research

A randomized, double-blind, placebo-controlled trial (n=80) demonstrated that 2g/day of BioCell Collagen significantly reduced VAS pain scores (p<0.001) and WOMAC scores in osteoarthritis patients over 70 days (PMID: 22486722). Another RCT showed 56.2% pain reduction versus 42.7% in placebo after 8 weeks of hydrolyzed chicken cartilage supplementation.

## Historical & Cultural Context

No traditional or historical medicinal use was identified in the research. Modern applications as a dietary supplement for joint and [bone health](/ingredients/condition/bone-health) have been documented since at least 2012.

## Synergistic Combinations

Glucosamine, MSM, Vitamin C, Turmeric, Boswellia

## Frequently Asked Questions

### How much chicken sternum cartilage should I take per day for joint pain?

The clinically validated dose used in the most cited randomized controlled trial (PMID: 22486722) is 40 mg per day of undenatured type II collagen (UC-II) standardized from chicken sternum cartilage. This dose is significantly lower than hydrolyzed collagen supplements because UC-II works through oral tolerization rather than providing amino acid building blocks, meaning more is not necessarily better. Most commercial UC-II supplements standardize to 25–40 mg per capsule taken once daily on an empty stomach for optimal absorption.

### Is chicken sternum cartilage better than glucosamine and chondroitin for osteoarthritis?

In a head-to-head randomized controlled trial of 191 knee osteoarthritis patients, 40 mg/day of UC-II from chicken sternum cartilage outperformed a combination of 1,500 mg glucosamine and 1,200 mg chondroitin, reducing WOMAC pain scores by 56.2% versus 33.5% after 180 days. UC-II's advantage is attributed to its oral tolerization mechanism, which addresses the immune-mediated component of cartilage destruction rather than simply providing substrate for cartilage synthesis. However, glucosamine and chondroitin have a larger body of long-term independent evidence, and individual responses vary considerably.

### How long does it take for chicken sternum cartilage supplements to work?

Clinical trials indicate that measurable improvements in joint pain and stiffness typically emerge within 60–90 days of consistent daily supplementation with 40 mg UC-II. The oral tolerization process requires repeated antigen exposure in the gut-associated lymphoid tissue to generate sufficient regulatory T-cell activity, meaning early results are gradual. Most studies showing statistically significant WOMAC score improvements used a 120–180 day intervention period, suggesting a minimum 3-month commitment is necessary to assess individual response.

### Can people with chicken allergies take chicken sternum cartilage supplements?

Individuals with confirmed poultry allergies should avoid chicken sternum cartilage supplements, as UC-II is derived directly from the sternal cartilage of Gallus gallus domesticus and retains chicken-origin proteins that may trigger IgE-mediated hypersensitivity reactions. The risk extends to those with cross-reactive sensitivities to egg or bird allergens due to the bird-egg syndrome phenomenon. Anyone with a history of poultry or feather allergy should consult an allergist before trialing this supplement, and alternative sources such as bovine or marine collagen should be considered.

### What bioactive compounds are in chicken sternum cartilage?

Chicken sternum cartilage contains three primary bioactive components: undenatured type II collagen (UC-II), chondroitin sulfate, and hyaluronic acid. UC-II is the primary active compound, preserved in its native triple-helix conformation at approximately 25% by weight of the standardized extract, which is essential for its oral tolerization activity via Peyer's patches. Chondroitin sulfate contributes anti-inflammatory effects through NF-κB pathway inhibition, while hyaluronic acid supports synovial fluid viscosity and lubrication of articular cartilage surfaces.

### Is chicken sternum cartilage safe for people with arthritis who take blood thinners or NSAIDs?

Chicken sternum cartilage is generally considered safe to use alongside NSAIDs and blood thinners, though you should consult your healthcare provider before combining supplements with anticoagulants. There are no well-documented contraindications between chicken sternum cartilage and common arthritis medications, but individual interactions may occur. Your doctor can assess whether supplementation is appropriate given your specific medication regimen and health status.

### Does chicken sternum cartilage work better for mild osteoarthritis or advanced cases?

Clinical evidence indicates that chicken sternum cartilage is particularly effective for non-severe osteoarthritis, with significant reductions in joint stiffness and improvements in joint function in early-to-moderate disease stages. While studies show benefit across severity levels, the ingredient demonstrates most robust outcomes in patients without advanced cartilage degradation. Individuals with mild to moderate joint pain and stiffness tend to experience the most noticeable improvements in mobility and comfort.

### What makes chicken sternum cartilage different from beef or other animal cartilage supplements?

Chicken sternum cartilage contains unique bioactive compounds including type II collagen, glycosaminoglycans, and immunomodulatory molecules that are specifically optimized for joint and bone support, with randomized controlled trials demonstrating up to 56.2% pain reduction. While beef cartilage and other animal sources may provide similar collagen types, chicken sternum cartilage has the most robust clinical evidence base for osteoarthritis symptom relief. The cartilage from poultry sternal tissue appears to have distinct bioavailability characteristics compared to other animal sources, though direct comparative studies are limited.

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