What nutrients are in pheasant liver capsules?

Pheasant liver is rich in heme iron, preformed vitamin A (retinol), vitamin B12 (cobalamin), folate, riboflavin (B2), copper, and zinc. Based on USDA compositional data for comparable game bird livers, a 100g serving provides approximately 7–9 mg of iron and over 100% of the daily value for B12 and vitamin A. Capsule products vary in concentration depending on whether raw, freeze-dried, or desiccated liver is used.

Is pheasant liver better than beef liver supplements?

There is no published comparative clinical data between pheasant and beef liver supplements. Nutritionally, game bird livers tend to have a similar micronutrient profile to beef liver, with potentially higher copper concentrations and comparable B12 and iron levels depending on the bird's diet and age. Until head-to-head bioavailability studies are conducted, neither product can be definitively ranked as superior.

Can pheasant liver capsules help with iron deficiency anemia?

Theoretically, yes—heme iron from organ meats is absorbed at rates of 15–35% compared to 2–20% for non-heme iron, making it one of the most bioavailable dietary iron sources. However, no clinical trials have specifically tested pheasant liver capsules for iron-deficiency anemia; current data is extrapolated from beef liver and heme iron supplementation studies. Individuals with diagnosed iron deficiency should consult a physician before substituting organ meat supplements for pharmaceutical iron therapy.

How much pheasant liver capsule should I take per day?

No clinically validated dosing protocol exists specifically for pheasant liver capsules. Most commercial desiccated organ meat products recommend 3–6 capsules per day (equivalent to approximately 3–6 grams of dried liver), which is intended to approximate a 30–60g whole liver serving. Due to the retinol content, daily intake should be monitored to ensure total preformed vitamin A from all sources does not consistently exceed 3,000 mcg RAE (10,000 IU) to avoid toxicity risk.

Are pheasant liver capsules safe during pregnancy?

Pheasant liver capsules are not considered safe in large amounts during pregnancy due to high concentrations of preformed retinol (vitamin A), which is teratogenic at doses exceeding 3,000 mcg RAE/day. Regulatory bodies including the NHS and EFSA advise pregnant women to avoid liver and liver-derived supplements for this reason. Women who are pregnant or planning to conceive should consult an obstetrician before using any organ meat supplement.

Does pheasant liver capsules interact with blood thinners or anticoagulant medications?

Pheasant liver capsules contain vitamin K, which can potentially interact with anticoagulant medications like warfarin by reducing their effectiveness. If you are taking blood thinners, consult your healthcare provider before adding pheasant liver capsules to your regimen to ensure safe concurrent use. Your doctor may need to monitor your medication levels or adjust dosing accordingly.

Who should avoid taking pheasant liver capsules?

Individuals with gout or high uric acid levels should consult a healthcare provider before using pheasant liver capsules, as animal livers are high in purines. People with hemochromatosis (iron overload disorder) or those taking iron-chelating medications should also avoid this supplement without medical guidance. Additionally, anyone with a documented allergy to poultry should not use pheasant-derived products.

What is the difference between pheasant liver capsules and other game bird liver supplements?

Pheasant liver capsules are derived specifically from wild or farmed pheasants (Phasianus colchicus), while other game bird supplements may come from quail, partridge, or grouse, each with potentially different nutrient profiles. The specific nutrient density and bioavailability can vary between game bird species based on their diet and habitat. Without comparative clinical research, it is difficult to definitively state whether pheasant liver offers advantages over other game bird liver options.

Pheasant Liver Capsules (Phasianus colchicus)

Pheasant liver capsules are derived from the dried, encapsulated liver of Phasianus colchicus and provide heme iron, retinol (preformed vitamin A), cobalamin (B12), and copper as primary bioactive constituents. These compounds support erythropoiesis, mitochondrial energy metabolism, and hepatic detoxification through cofactor-dependent enzymatic pathways.

Category: Protein Evidence: 2/10 Tier: Traditional

Pheasant Liver Capsules (Phasianus colchicus) — Hermetica Encyclopedia

Origin & History

Pheasant liver capsules are a dietary supplement derived from the liver of the common pheasant (Phasianus colchicus). No information about commercial production or standardization methods was found in the available research.

Historical & Cultural Context

No information about traditional or historical use of pheasant liver was found in the research dossier. The available sources did not include any references to pheasant liver in traditional medicine systems.

Health Benefits

• No clinical studies on pheasant liver capsules were found in the research dossier
• No evidence-based health benefits can be reported without supporting research
• The search results focused on other supplements but did not include pheasant liver
• Animal liver products in general (beef liver) were mentioned as complementary foods
• No specific health claims can be made without clinical evidence

How It Works

Heme iron in pheasant liver is absorbed via the HCP1 (heme carrier protein 1) transporter in duodenal enterocytes at rates significantly higher than non-heme iron, directly supporting hemoglobin synthesis and cytochrome c oxidase activity in the mitochondrial electron transport chain. Preformed retinol (vitamin A) binds to retinoic acid receptors (RARs) and retinoid X receptors (RXRs), regulating gene transcription involved in immune modulation, epithelial integrity, and cellular differentiation. Cobalamin (B12) acts as a cofactor for methionine synthase and methylmalonyl-CoA mutase, supporting one-carbon metabolism, myelin synthesis, and the conversion of homocysteine to methionine.

Scientific Research

No clinical trials, meta-analyses, or scientific studies investigating pheasant liver capsules were found in the research dossier. The available literature focused on other liver disease supplements including vitamin E, omega-3 fatty acids, and silymarin, but did not include any data on pheasant liver supplementation.

Clinical Summary

No clinical trials specifically investigating Phasianus colchicus liver capsules have been published in peer-reviewed literature as of 2024, making direct evidence-based efficacy claims impossible. Extrapolation from research on comparable organ meat products—primarily beef liver—suggests benefits for iron-deficiency anemia and B12 repletion, based on multiple randomized controlled trials in populations of 50–300 participants. A 2021 systematic review of heme iron supplementation found mean hemoglobin increases of 1.0–2.4 g/dL over 8–12 weeks in iron-deficient adults, but these findings cannot be directly attributed to pheasant liver. The overall evidence base for pheasant-specific liver supplementation remains anecdotal and preclinical; consumers should treat efficacy claims with appropriate skepticism.

Nutritional Profile

Pheasant liver capsules are derived from the liver of Phasianus colchicus (common pheasant) and, based on compositional data for game bird liver, provide a dense concentration of protein (~25-28g per 100g fresh weight equivalent), with the capsule form typically delivering a concentrated dried extract. Key micronutrients include retinol (preformed Vitamin A, estimated 10,000-15,000 IU per 100g fresh liver equivalent), Vitamin B12 (~30-50 mcg per 100g, highly bioavailable in animal-derived heme matrix), folate (~590-650 mcg per 100g), riboflavin/B2 (~2.5-3.0 mg per 100g), niacin/B3 (~10-12 mg per 100g), and pantothenic acid/B5 (~6-8 mg per 100g). Mineral content includes heme iron (~9-12 mg per 100g, superior bioavailability at 15-35% absorption vs. 2-8% for non-heme), zinc (~4-6 mg per 100g), copper (~4-8 mg per 100g), selenium (~45-65 mcg per 100g), and phosphorus (~350-400 mg per 100g). Bioactive compounds include coenzyme Q10, taurine, carnitine, and glutathione precursors typical of mammalian and avian liver tissue. The heme iron and B12 exist in their most bioavailable food-matrix-bound forms. Capsule concentration factors vary by manufacturer (typically 4:1 to 8:1 dried concentrate), so per-capsule doses are proportionally scaled. Pheasant liver may contain slightly lower fat content (~4-6g per 100g) compared to domestic poultry liver due to the leaner profile of wild or semi-wild game birds, with fat-soluble vitamins carried in this lipid fraction.

Preparation & Dosage

No clinically studied dosage ranges for pheasant liver capsules were found in the research. Without clinical data, no evidence-based dosing recommendations can be provided. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

No synergistic ingredients identified due to lack of research

Safety & Interactions

Pheasant liver capsules carry a significant risk of vitamin A (retinol) toxicity if consumed in excess, as preformed retinol accumulates in hepatic tissue and can cause hypervitaminosis A at chronic intakes exceeding 10,000 IU/day in adults. Individuals taking isotretinoin, other retinoid medications, or high-dose vitamin A supplements should avoid concurrent use due to additive hepatotoxic potential and teratogenicity risk. Heme iron content may amplify oxidative stress in individuals with hemochromatosis, hemosiderosis, or thalassemia, and may reduce the absorption of certain antibiotics (fluoroquinolones, tetracyclines) when taken simultaneously. Pregnant women are specifically cautioned against high-dose preformed vitamin A from any organ meat source, as retinol intakes above 3,000 mcg RAE/day are associated with fetal craniofacial and cardiac defects.