# Ostrich Liver Extract (Struthio camelus) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/ostrich-liver-extract **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-31 **Evidence Score:** 2 / 10 **Category:** Protein **Also Known As:** Struthio camelus liver extract, African ostrich liver extract, Ostrich hepatic extract, Ostrich liver supplement, OLE supplement ## Overview Ostrich liver extract is derived from the liver of Struthio camelus and contains proteins, B-vitamins, iron, and other minerals typical of organ meat extracts. Currently, no human clinical trials have established specific health benefits for ostrich liver extract supplementation. ## Health Benefits • No clinically proven benefits - no human clinical trials exist for ostrich liver extract • Potential nutritional support from proteins and minerals found in ostrich liver (evidence quality: theoretical only) • May share properties with other organ meats used historically for nutritional supplementation (evidence quality: speculative) • Related ostrich oil products show [anti-inflammatory](/ingredients/condition/inflammation) effects in animal models only (evidence quality: preliminary, not liver-specific) • General food safety established as edible offal comparable to turkey liver (evidence quality: food safety data only) ## Mechanism of Action Ostrich liver extract theoretically provides heme iron, B-complex vitamins (particularly B12, folate, and riboflavin), and amino acids that support cellular [metabolism](/ingredients/condition/weight-management) and red blood cell formation. The high concentration of retinol (vitamin A) may influence gene expression through retinoic acid receptors. However, specific bioactive compounds and their mechanisms remain unstudied in controlled research. ## Clinical Summary No human clinical trials have been conducted specifically on ostrich liver extract supplementation. Available research is limited to nutritional analysis of ostrich liver as a food source, showing protein content of approximately 20-25% and significant iron levels. Studies on other organ meat extracts suggest potential nutritional benefits, but these findings cannot be directly extrapolated to ostrich liver. The current evidence base is insufficient to support therapeutic claims. ## Nutritional Profile Ostrich liver extract is derived from the liver of Struthio camelus and, based on compositional analysis of raw ostrich liver (no standardized extract concentration data exists), provides the following estimated profile per 100g of source tissue: Protein: 20-22g (high-quality complete protein containing all essential amino acids; rich in lysine ~1.8g, leucine ~1.7g, and methionine ~0.6g); Fat: 3-5g (relatively low compared to mammalian livers; fatty acid profile includes oleic acid and small amounts of omega-3 and omega-6 PUFAs); Cholesterol: approximately 350-400mg/100g raw tissue. Key micronutrients in source liver tissue include: Iron: 8-12mg/100g (predominantly heme iron, Fe2+, with high bioavailability estimated at 15-35% absorption rate); Vitamin B12: 30-50µg/100g (exceptionally high; well above RDA of 2.4µg); Folate: 200-280µg/100g; Vitamin A (retinol): 10,000-15,000 IU/100g (preformed retinol, not beta-carotene); Zinc: 4-6mg/100g; Copper: 8-12mg/100g; Selenium: 25-40µg/100g. Bioactive compounds include heme-bound iron complexes, coenzyme Q10 (estimated 2-4mg/100g based on mammalian liver analogs), [glutathione](/ingredients/condition/detox) precursors, and taurine (~40-60mg/100g). Phospholipids, particularly phosphatidylcholine, are present at approximately 2-3g/100g of source tissue. As an extract, concentration of these compounds varies significantly by processing method (hydrolysate vs. lyophilized powder); standardization data for commercial extracts is not publicly available. Bioavailability of peptide fractions in hydrolyzed form is theoretically enhanced over whole tissue due to reduced molecular weight facilitating intestinal absorption. ## Dosage & Preparation No clinically studied dosage ranges are available for ostrich liver extract in any form (extract, powder, or standardized), as no relevant human trials exist. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Safety data for ostrich liver extract supplements is extremely limited due to lack of clinical studies. Potential concerns include excessive vitamin A intake leading to hypervitaminosis A, particularly with long-term use. Individuals with iron overload disorders should avoid organ meat extracts due to high heme iron content. Pregnancy and breastfeeding safety is unknown, and potential interactions with medications affecting iron absorption or vitamin A [metabolism](/ingredients/condition/weight-management) have not been studied. ## Scientific Research No human clinical trials, RCTs, or meta-analyses were identified specifically for ostrich liver extract in the available research. The only related human study was a pilot RCT (PMID: 26622379) testing oyster extract (not ostrich) in alcohol drinkers, while ostrich oil (not liver) showed [anti-inflammatory](/ingredients/condition/inflammation) effects only in rat models. ## Historical & Cultural Context No historical or traditional medicinal uses are documented for ostrich liver extract in the available sources. While ostrich oil has folk medicine applications as an [anti-inflammatory](/ingredients/condition/inflammation) for skin conditions, liver extract lacks traditional context. ## Synergistic Combinations Other organ meats, B-complex vitamins, iron supplements, general liver support nutrients ## Frequently Asked Questions ### What nutrients are found in ostrich liver extract? Ostrich liver extract contains proteins, heme iron, B-vitamins (especially B12 and folate), vitamin A (retinol), and minerals like zinc and copper. However, specific concentrations in commercial extracts vary and are rarely standardized. ### Is ostrich liver extract better than beef liver extract? No comparative studies exist between ostrich and beef liver extracts. Both provide similar nutrients typical of organ meats, but ostrich liver may have slightly different fatty acid profiles due to the bird's diet and physiology. ### How much ostrich liver extract should I take daily? No established dosage recommendations exist for ostrich liver extract due to lack of clinical research. Manufacturers typically suggest 500-1000mg daily, but these amounts are not based on scientific evidence. ### Can ostrich liver extract cause vitamin A toxicity? Potentially yes, as organ meats are high in retinol (preformed vitamin A). Chronic intake of excessive vitamin A can cause hepatotoxicity, bone pain, and other serious effects, though specific risk levels for ostrich liver extract are unknown. ### Does ostrich liver extract help with anemia? While ostrich liver contains heme iron which is well-absorbed, no studies have tested ostrich liver extract specifically for anemia treatment. Established iron supplements with proven efficacy remain the preferred treatment for iron-deficiency anemia. ### What is the current state of clinical research on ostrich liver extract? No human clinical trials have been conducted on ostrich liver extract, making it one of the least-studied organ supplement ingredients available. While ostrich liver theoretically contains proteins, minerals, and other nutrients found in liver tissues, all claimed health benefits remain speculative without scientific validation. Related ostrich oil products have shown some anti-inflammatory effects in research, but these findings do not directly apply to liver extract supplementation. ### Is ostrich liver extract safe to take with blood thinners or iron supplements? Ostrich liver extract is naturally high in iron and vitamin K, both of which can interact with blood thinners like warfarin and may affect iron supplement efficacy or absorption. If you are taking anticoagulants or iron medications, consult your healthcare provider before adding ostrich liver extract to avoid potential interactions or reduced medication effectiveness. The lack of clinical data on this ingredient makes it especially important to disclose all supplements to your doctor. ### Who should avoid ostrich liver extract supplementation? People with hemochromatosis or iron overload disorders should avoid ostrich liver extract due to its concentrated iron content, which can worsen these conditions. Pregnant and nursing women should consult healthcare providers before use, as the high vitamin A concentration in liver extracts poses potential risks to fetal development. Individuals taking blood thinners, antiretroviral medications, or those with liver disease should also seek medical guidance due to insufficient safety data in these populations. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*