# Pigeon Liver Powder (Columba livia)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/pigeon-liver-powder
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-25
**Evidence Score:** 2 / 10
**Category:** Protein
**Also Known As:** Columba livia liver powder, Rock pigeon liver extract, Common pigeon hepatic powder, Urban pigeon liver supplement, Feral pigeon liver powder, Dove liver powder

## Overview

Pigeon liver powder (Columba livia) is a desiccated organ meat product derived from domestic or feral pigeons, containing heme iron, retinol, and B vitamins including cobalamin. Unlike well-studied organ supplements, it carries documented risks of anticoagulant rodenticide bioaccumulation, particularly coumatetralyl and brodifacoum, which inhibit vitamin K epoxide reductase (VKORC1) in consumers.

## Health Benefits

• No documented health benefits - available research focuses exclusively on toxin accumulation and pathology in pigeon livers
• No human clinical trials exist to support any therapeutic claims
• Current evidence shows contamination risks from anticoagulant rodenticides (0.07-3.33 ng/g coumatetralyl detected)
• No traditional medicinal uses documented in any historical systems
• Lack of standardization protocols or quality control measures for human consumption

## Mechanism of Action

Pigeon liver tissue contains heme iron that facilitates intestinal absorption via the HCP1 (heme carrier protein 1) transporter, and retinol bound to cellular retinol-binding protein II (CRBPII). However, bioaccumulated anticoagulant rodenticides such as coumatetralyl and brodifacoum act as vitamin K antagonists by inhibiting the enzyme vitamin K epoxide reductase complex subunit 1 (VKORC1), thereby blocking the carboxylation of clotting factors II, VII, IX, and X. This mechanism poses a direct hemorrhagic risk to consumers of contaminated pigeon liver products rather than conferring any documented therapeutic pathway.

## Clinical Summary

No human clinical trials have been conducted evaluating pigeon liver powder as a dietary supplement or therapeutic agent, making evidence quality extremely low by any grading standard (GRADE or Oxford EBM). Available peer-reviewed literature is restricted to toxicological studies documenting rodenticide residues in Columba livia livers, with measured coumatetralyl concentrations ranging from 0.07 to 3.33 ng/g wet weight in feral urban populations. Wildlife pathology studies confirm secondary poisoning potential, but no extrapolation to human supplementation efficacy has been attempted or validated. In the absence of randomized controlled trials, cohort studies, or even case series supporting benefit, no therapeutic dose or outcome can be cited.

## Nutritional Profile

Pigeon liver powder (Columba livia) is a protein-dense ingredient derived from desiccated pigeon liver. Based on extrapolation from comparable columbiformed and avian liver compositions: Protein content is high, approximately 55-65g/100g dry weight, dominated by complete proteins containing all essential amino acids including lysine (~4.8g/100g protein), leucine (~7.2g/100g protein), and methionine (~2.1g/100g protein). Fat content ranges 8-15g/100g dry weight, with phospholipids (primarily phosphatidylcholine) constituting a significant fraction. Carbohydrates are minimal (<2g/100g), consistent with hepatic glycogen contributions. Micronutrient profile mirrors other avian livers: iron content is substantial (~18-25mg/100g dry weight, primarily heme iron with high bioavailability ~25-35%), vitamin B12 is notably high (~60-80µg/100g dry weight), retinol (preformed vitamin A) is present at elevated concentrations (~8,000-15,000µg RAE/100g dry weight, posing potential hypervitaminosis A risk at high intake), riboflavin (B2) ~2.5-3.5mg/100g, folate ~500-700µg/100g, zinc ~5-8mg/100g, copper ~8-12mg/100g. Bioactive compounds include coenzyme Q10 (~20-40mg/100g), carnosine, and anserine. CRITICAL CONTAMINATION NOTE: Documented accumulation of anticoagulant rodenticides (coumatetralyl: 0.07-3.33 ng/g wet weight), heavy metals (lead, cadmium from urban foraging), and potential antibiotic residues significantly compromise the safety profile and effectively nullify nutritional benefit assessments in real-world sourced material. Bioavailability of micronutrients may be adversely affected by processing into powder form through oxidation of heme iron and degradation of heat-labile vitamins (B12, folate) during drying.

## Dosage & Preparation

No clinically studied dosage ranges, forms, or standardization protocols exist, as Pigeon Liver Powder lacks documentation for human therapeutic use. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

The primary documented safety concern is the presence of second-generation anticoagulant rodenticide (SGAR) residues, including brodifacoum, bromadiolone, and coumatetralyl, which accumulate in pigeon liver fat and tissue due to the species' urban foraging behavior. These compounds inhibit VKORC1, and concurrent use with warfarin, apixaban, rivaroxaban, or other anticoagulants could produce additive hemorrhagic effects with potentially life-threatening bleeding risk. Pigeon liver also presents a risk of Chlamydia psittaci and Salmonella spp. transmission if inadequately processed, with desiccation methods not uniformly validated for pathogen elimination. Pigeon liver powder is contraindicated in pregnancy due to high preformed retinol content, which carries teratogenic risk at excessive intakes, and is not recommended for individuals on anticoagulant therapy.

## Scientific Research

No human clinical trials, randomized controlled trials (RCTs), or meta-analyses on Pigeon Liver Powder were identified. Available studies focus exclusively on pigeon liver pathology from environmental toxins, such as formaldehyde/urea exposure causing liver lesions and necrosis in pigeons.

## Historical & Cultural Context

No historical or traditional medicinal uses of Pigeon Liver Powder in any systems (e.g., Ayurveda, TCM) are documented in the sources. Research is limited to toxicological studies rather than traditional medicine applications.

## Synergistic Combinations

Not applicable - no synergistic ingredients identified due to lack of therapeutic research

## Frequently Asked Questions

### Is pigeon liver powder safe to eat as a supplement?

Pigeon liver powder carries significant safety concerns due to documented accumulation of anticoagulant rodenticides such as brodifacoum and coumatetralyl, which inhibit VKORC1 and impair blood clotting. Feral and urban pigeons are frequently exposed to rodenticides, and their livers concentrate these compounds at levels up to 3.33 ng/g. No regulatory body has approved pigeon liver powder as a safe supplement ingredient.

### What nutrients are found in pigeon liver powder?

Pigeon liver, like other avian livers, contains heme iron, preformed retinol (vitamin A), cobalamin (B12), riboflavin (B2), folate, and copper, all of which are present in conventional organ supplements such as beef liver. However, the nutrient profile has not been standardized or quantified in commercially processed pigeon liver powder, and contamination risks may outweigh any nutritional benefit compared to better-studied alternatives.

### Are there any clinical studies on pigeon liver powder for humans?

No human clinical trials, observational studies, or controlled experiments have examined pigeon liver powder for any health outcome in humans. The entire body of peer-reviewed literature on Columba livia liver focuses on toxicological surveillance, rodenticide bioaccumulation, and avian pathology rather than therapeutic applications. This means no evidence-based dosage, efficacy claim, or health benefit can be substantiated.

### Can pigeon liver powder interact with blood thinners like warfarin?

Yes, this is a clinically significant concern. Rodenticide residues such as brodifacoum in pigeon liver act as long-acting vitamin K antagonists by blocking VKORC1, the same enzyme targeted by warfarin. Consuming pigeon liver products alongside warfarin or other anticoagulants (apixaban, rivaroxaban) could potentiate bleeding risk unpredictably, and individuals on anticoagulant therapy should avoid this ingredient entirely.

### How does pigeon liver powder compare to beef liver supplements?

Beef liver supplements are supported by a substantially larger evidence base for nutrient delivery, standardized processing protocols, and established safety profiles, including USDA monitoring for contaminants. Pigeon liver powder lacks any regulatory oversight, standardized processing, or clinical data, while carrying unique contamination risks from environmental rodenticide exposure not typically associated with farmed bovine liver. For organ-based nutrition, beef or chicken liver supplements represent far better-characterized and safer alternatives.

### What contaminants have been detected in pigeon liver supplements?

Research has identified anticoagulant rodenticides (specifically coumatetralyl) in pigeon liver samples at concentrations ranging from 0.07 to 3.33 ng/g, indicating environmental contamination from rodent control pesticides. Pigeons' scavenging behavior and exposure to urban environments make their livers susceptible to bioaccumulation of toxins and pollutants. These contaminants pose potential health risks and raise concerns about the safety of consuming pigeon liver as a supplement without rigorous testing and purification protocols.

### Who should avoid pigeon liver powder supplementation?

Pregnant and nursing women should avoid pigeon liver powder due to the lack of safety data and potential contamination risks, particularly from anticoagulant residues that could affect fetal development or infant health. Individuals taking anticoagulant medications or those with clotting disorders should be especially cautious, as the residual pesticides detected in pigeon liver may interact with blood regulation. Children and elderly individuals with compromised detoxification capacity should also avoid this supplement until rigorous safety standards and contamination testing are established.

### Why is there no standardization for pigeon liver powder products?

Pigeon liver powder lacks standardization because there are no established clinical guidelines, quality standards, or regulatory frameworks specific to this ingredient—partly due to the complete absence of human clinical trials demonstrating efficacy. The documented presence of variable contaminant levels (anticoagulant residues) across different sources makes it difficult to create consistent safety or potency standards without comprehensive testing protocols. Without evidence of therapeutic benefit and with contamination concerns, manufacturers have no established basis for creating standardized formulations or dosage recommendations.

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