Quail Heart Capsules (Coturnix coturnix)

Quail heart capsules are a whole-food organ meat supplement derived from Coturnix coturnix, providing concentrated coenzyme Q10, heme iron, and cardiac-specific proteins including myosin and troponin. No peer-reviewed clinical evidence currently supports specific health claims for this preparation in humans.

Origin & History

Quail Heart Capsules are derived from the cardiac tissue of quail (Coturnix coturnix), a small game bird in the Phasianidae family. No specific extraction methods, standardization processes, or chemical classes are detailed in scientific literature for this supplement form.

Historical & Cultural Context

No historical or traditional medicine documentation found for quail heart capsules in any traditional system. Quail appears only in modern poultry research contexts, not ethnomedicine.

Health Benefits

• No documented health benefits - No clinical trials or human studies exist for quail heart capsules
• No cardiovascular effects established - Studies mentioning quail focus on unrelated developmental biology research (PMID: 12729566)
• No traditional medicine applications - Absence of documentation in TCM, Ayurveda, or other traditional systems
• No identified bioactive compounds - No key constituents or mechanisms reported in literature
• No safety profile established - Lack of data on contraindications, interactions, or dosing

How It Works

Quail heart tissue contains coenzyme Q10, which participates in mitochondrial electron transport chain complexes I through III, theoretically supporting cellular ATP synthesis. Heme iron present in cardiac muscle is absorbed via the HCP-1 transporter with roughly 15–35% bioavailability, superior to non-heme sources. However, no studies have confirmed that encapsulated quail heart delivers these compounds at pharmacologically meaningful concentrations in human subjects.

Scientific Research

No human clinical trials, RCTs, or meta-analyses exist for quail heart capsules. Search results incorrectly reference Qiliqiangxin (QLQX) capsules, an unrelated Traditional Chinese Medicine formula for heart failure (PMID: 32024496, PMID: 23747768), which contain no quail ingredients.

Clinical Summary

No human clinical trials, randomized controlled studies, or observational cohort studies have been conducted specifically on quail heart capsules as a dietary supplement. Research indexed under Coturnix coturnix (e.g., PMID: 12729566) addresses developmental biology and embryology, not supplementation outcomes. Extrapolations from general organ meat literature or CoQ10 isolate studies cannot be responsibly applied to this specific product. The current evidence base is insufficient to draw any conclusions regarding efficacy, optimal dosing, or therapeutic application.

Nutritional Profile

Based on compositional data for quail heart tissue (Coturnix coturnix), extrapolated from fresh quail heart analysis and general avian cardiac muscle composition, since capsule-specific assay data is absent from peer-reviewed literature. Protein content is the dominant macronutrient, estimated at 65–75% by dry weight, composed of myofibrillar proteins including myosin, actin, tropomyosin, and titin — characteristic of striated cardiac muscle. Fat content estimated at 8–15% dry weight, with fatty acid profile including oleic acid (C18:1, ~35–40% of total fatty acids), palmitic acid (C16:0, ~25–30%), stearic acid (C18:0, ~10–15%), and small fractions of arachidonic acid (C20:4n-6) and DHA (C22:6n-3), consistent with poultry organ tissue profiles. Carbohydrate content is negligible (<2% dry weight), primarily as glycogen residues. Micronutrients likely present based on avian cardiac tissue composition: Iron (heme-bound, Fe²⁺) estimated 4–8 mg per 100g fresh weight with high bioavailability (~15–35% absorption) due to heme form; Zinc approximately 3–5 mg per 100g; Coenzyme Q10 (ubiquinone-10) estimated 30–90 mg per 100g fresh cardiac tissue — cardiac muscle is among the richest natural sources of CoQ10 across species; B vitamins including B12 (~10–20 µg/100g), riboflavin/B2 (~0.8–1.2 mg/100g), niacin/B3 (~5–8 mg/100g), and pantothenic acid (~2–4 mg/100g); Selenium approximately 15–30 µg per 100g. Taurine is present as a free amino acid in cardiac muscle, estimated 50–150 mg per 100g fresh weight. Carnitine (L-carnitine) estimated at 20–60 mg per 100g, consistent with other avian heart tissues. Creatine content estimated 300–500 mg per 100g fresh weight. Collagen contributes a minor structural protein fraction (~3–5% of total protein). Capsule encapsulation typically involves freeze-dried or desiccated powder; a standard 500 mg capsule would contain approximately 325–375 mg protein equivalent, with CoQ10 per capsule estimated at 0.15–0.45 mg assuming typical fill weight — substantially lower than therapeutic CoQ10 doses used in clinical contexts (100–300 mg/day). Bioavailability of lipid-soluble compounds including CoQ10 and fat-soluble vitamins from capsule form may be reduced compared to whole food consumption without co-ingested dietary fat. No independent third-party compositional assay data for quail heart capsule products has been identified in the peer-reviewed literature as of early 2025.

Preparation & Dosage

No clinically studied dosages, forms, or standardization details are available for quail heart capsules. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

No synergistic ingredients identified due to lack of research

Safety & Interactions

Quail heart capsules carry a risk of allergic reaction in individuals with poultry or bird allergies, as cardiac muscle proteins such as parvalbumin and tropomyosin are common allergens. The high purine content typical of organ meats may elevate serum uric acid, posing a concern for individuals with gout or hyperuricemia. No documented drug interactions exist in the literature, though the heme iron content could theoretically reduce absorption of levothyroxine, tetracyclines, or bisphosphonates if taken concurrently. Safety data during pregnancy, lactation, and pediatric populations is entirely absent.