# Goose Heart Capsules (Anser anser domesticus)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/goose-heart-capsules
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-25
**Evidence Score:** 2 / 10
**Category:** Protein
**Also Known As:** Anser anser domesticus, Domestic Goose Heart, Goose Cardiac Extract, Anser domesticus heart, Poultry Heart Supplement, Goose Organ Meat Capsules

## Overview

Goose heart capsules are a whole-food organ meat supplement derived from Anser anser domesticus, providing concentrated cardiac tissue proteins, coenzyme Q10, and heme iron. The proposed mechanism follows the 'like supports like' doctrine of glandular therapy, suggesting cardiac-specific peptides and [mitochondrial](/ingredients/condition/energy) cofactors may support heart tissue function, though no clinical evidence currently validates this hypothesis.

## Health Benefits

• No documented health benefits - no clinical trials exist for Goose Heart Capsules
• No [cardiovascular](/ingredients/condition/heart-health) effects studied - unlike unrelated herbs like hawthorn which improved exercise tolerance in heart failure patients
• No metabolic benefits established - goose studies focus only on liver tissue, not heart
• No traditional medicine applications recorded - unlike documented uses for herbal cardiac formulas
• No safety or efficacy data available - complete absence of human or animal studies

## Mechanism of Action

Goose heart capsules theoretically deliver preformed coenzyme Q10 (ubiquinol form), heme iron, and cardiac-specific peptides that may support [mitochondrial](/ingredients/condition/energy) electron transport chain efficiency at Complexes I through III. Cardiac tissue is also a source of taurine, which modulates intracellular calcium handling via the sarcoplasmic reticulum Ca2+-ATPase (SERCA2a) pump, potentially influencing cardiomyocyte contractility. Additionally, B vitamins including B12 and riboflavin present in cardiac tissue serve as cofactors for fatty acid beta-oxidation, the dominant energy pathway in heart muscle, though absorption and bioavailability of these compounds from encapsulated dried tissue remain entirely unstudied.

## Clinical Summary

No clinical trials, randomized controlled studies, cohort studies, or case series have been published specifically examining goose heart capsules in human subjects as of 2024. Research on Anser anser domesticus has focused almost exclusively on hepatic tissue and liver-derived foie gras lipid [metabolism](/ingredients/condition/weight-management), with zero peer-reviewed investigation into cardiac tissue extracts from this species. Glandular therapy broadly lacks rigorous clinical validation; the closest adjacent evidence involves bovine cardiac extracts, where small underpowered studies from the 1970s suggested modest effects on non-specific cardiac symptoms but failed to meet modern evidentiary standards. The honest evidence rating for goose heart capsules is insufficient, meaning no efficacy claim can be responsibly made.

## Nutritional Profile

Goose heart tissue (Anser anser domesticus) is a muscle organ meat with a nutritional profile consistent with avian cardiac muscle. **Macronutrients (per 100g raw tissue, estimated from analogous poultry heart data):** Protein: ~16–18g (predominantly myofibrillar proteins including myosin, actin, and cardiac-specific troponins); Fat: ~5–9g (with a relatively high proportion of monounsaturated fatty acids, particularly oleic acid ~2–3g, and polyunsaturated fatty acids including arachidonic acid and small amounts of EPA/DHA from phospholipid membranes); Carbohydrates: <1g (trace glycogen). **Micronutrients:** Iron: ~5–7mg (predominantly heme iron with ~20–25% bioavailability, significantly higher than non-heme plant sources at ~2–5%); Zinc: ~3–4mg; Phosphorus: ~180–220mg; Selenium: ~15–25µg; Potassium: ~250–300mg; Sodium: ~60–80mg. **Vitamins:** Vitamin B12 (cobalamin): ~8–12µg (high bioavailability >50%); Riboflavin (B2): ~0.8–1.2mg; Niacin (B3): ~5–7mg; Pantothenic acid (B5): ~2–3mg; Folate (B9): ~30–50µg; Vitamin A (retinol): ~10–30µg; small amounts of Vitamin D. **Bioactive compounds:** Coenzyme Q10 (ubiquinone): ~3–8mg/100g (cardiac muscle is among the richest tissue sources; bioavailability from whole-tissue matrices is moderate but enhanced by lipid co-ingestion); Taurine: ~100–200mg/100g (free amino acid concentrated in cardiac tissue, involved in bile acid conjugation and osmoregulation); L-Carnitine: ~30–60mg/100g (essential for [mitochondrial](/ingredients/condition/energy) fatty acid transport; bioavailability from meat sources ~55–75%, superior to supplemental forms at ~15–20%); Creatine: ~200–400mg/100g; Carnosine (β-alanyl-L-histidine): ~50–150mg/100g (dipeptide [antioxidant](/ingredients/condition/antioxidant)); Collagen and elastin: present in connective tissue and valve structures. **Lipid profile detail:** Cholesterol: ~150–200mg/100g; Phospholipids (phosphatidylcholine, phosphatidylethanolamine): significant membrane-derived content. **Bioavailability notes:** Encapsulation in dried/powdered capsule form may reduce moisture content ~70–75%, concentrating nutrients approximately 3–4× on a dry-weight basis. However, processing (dehydration, grinding) may degrade heat-sensitive compounds such as CoQ10 and certain B-vitamins. Heme iron and B12 retain high bioavailability in dried organ meat formats. No standardized concentration data exist specifically for commercial Goose Heart Capsule products; actual content depends heavily on manufacturing processes, sourcing, and whether the product contains pure cardiac tissue or includes fillers/excipients.

## Dosage & Preparation

No clinically studied dosage ranges exist for Goose Heart Capsules in any form (extract, powder, or standardized), as no relevant human trials were found. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Goose heart capsules carry a risk of allergic reaction in individuals with poultry or bird-meat hypersensitivity, and cross-reactivity with egg or feather allergens (bird-egg syndrome) is a theoretical concern given shared avian proteins. The high heme iron content may be contraindicated in individuals with hemochromatosis, hemosiderosis, or other iron overload conditions, and could potentiate iron toxicity when combined with supplemental iron or iron-rich diets. Purine content in cardiac tissue is moderately elevated, posing a risk of elevated uric acid and gout flares in susceptible individuals, particularly those on allopurinol or febuxostat where uric acid dynamics are already being managed. Pregnant women should consult a physician before use due to undefined safety data, and those on anticoagulants like warfarin should exercise caution given the significant vitamin K content present in organ meats.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses specifically on Goose Heart Capsules were identified in PubMed or related databases. Search results instead reference unrelated herbal cardiac treatments like Guanxinshutong (planned n=480) and hawthorn berry extract (n=143), but no PMIDs link directly to goose heart products.

## Historical & Cultural Context

No historical context or traditional medicine systems (TCM, Ayurveda) document Goose Heart Capsules for any indications. The research identifies traditional uses only for unrelated herbal cardiac formulas and other organ meats.

## Synergistic Combinations

None identified due to lack of research

## Frequently Asked Questions

### What is goose heart and why is it used in capsule supplements?

Goose heart (Anser anser domesticus) is the cardiac muscle tissue of the domestic goose, freeze-dried and encapsulated as part of the glandular therapy tradition, which holds that consuming organ-specific tissue provides targeted nutritional cofactors to the same organ in humans. The tissue is rich in coenzyme Q10, heme iron, taurine, B12, and cardiac-specific peptides. This practice lacks clinical validation but is grounded in whole-food nutrient density philosophy.

### Does goose heart have more CoQ10 than beef heart?

Direct comparative assays of CoQ10 concentration between goose heart and beef heart tissue have not been published in peer-reviewed literature. Beef heart is one of the richest known dietary sources of CoQ10, ranging from approximately 11 to 14 mg per 100 grams of tissue. Goose heart likely contains comparable ubiquinol concentrations given shared cardiac mitochondrial density, but species-specific quantification data for Anser anser domesticus cardiac tissue does not currently exist.

### Are there any clinical trials on goose heart capsule supplements?

As of 2024, there are zero published clinical trials, observational studies, or controlled human studies examining goose heart capsules or goose cardiac tissue extracts for any health outcome. Research on Anser anser domesticus is limited almost entirely to liver tissue and lipid metabolism in the context of food science. Any health claims made by supplement manufacturers are therefore unsupported by clinical evidence.

### Can goose heart capsules help with heart health or cardiovascular function?

There is no clinical evidence that goose heart capsules improve any cardiovascular outcome in humans, including heart rate, ejection fraction, blood pressure, or exercise tolerance. The cardiovascular nutrients present in cardiac tissue, particularly CoQ10 and taurine, do have independent clinical evidence in their isolated forms; for example, supplemental CoQ10 at 300 mg/day has shown modest benefits in heart failure (NYHA Class III) in the Q-SYMBIO trial. Whether the quantities delivered via goose heart capsules replicate these effects is entirely unknown.

### Who should avoid taking goose heart capsules?

Individuals with poultry allergies, bird-egg syndrome, or known hypersensitivity to avian proteins should avoid goose heart capsules due to allergenic cardiac tissue proteins. People with hemochromatosis or iron-overload disorders face risk from the concentrated heme iron content, and gout patients should be cautious given elevated purine levels inherent to organ meats. Pregnant women, breastfeeding individuals, and anyone on anticoagulants, iron therapy, or uric acid-lowering medications should consult a healthcare provider before use.

### Is goose heart safe to take alongside heart medications like beta-blockers or ACE inhibitors?

There are no documented interactions between goose heart capsules and common cardiovascular medications, as goose heart has not been studied in clinical settings. However, because no safety data exists for this supplement in combination with prescription heart drugs, you should consult your healthcare provider before taking goose heart capsules if you are on any cardiac medications. Your doctor can assess whether this supplement is appropriate for your specific treatment regimen.

### How much goose heart should I take per day, and is there a standard dosage?

There is no established standard dosage for goose heart capsules because clinical research has never been conducted on this supplement to determine safe or effective doses. Manufacturers may vary in their recommended serving sizes, so follow the label instructions provided by your specific product. If you are considering taking goose heart capsules, discuss appropriate dosing with a healthcare provider given the lack of safety data.

### Can I get the same nutrients from eating regular chicken or beef heart instead of goose heart capsules?

Goose heart, chicken heart, and beef heart all contain similar nutrient profiles including protein, iron, and trace minerals, making whole food sources potentially comparable alternatives. Unlike goose heart capsules, beef heart has been studied and shown to contain higher concentrations of CoQ10, making it a better-researched option if cardiovascular support is your goal. Whole animal hearts from any poultry or meat source offer the advantage of being foods with established safety histories, unlike unproven supplement forms.

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