# Bison Spleen Powder **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/bison-spleen-powder **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-18 **Evidence Score:** 4 / 10 **Category:** Protein **Also Known As:** Bos bison spleen powder, American bison spleen, Buffalo spleen powder, Plains bison organ powder, Bison lien powder, Wild bison spleen extract, North American buffalo spleen ## Overview Bison spleen powder is a concentrated organ meat supplement rich in heme iron, zinc, and B-complex vitamins that support [immune function](/ingredients/condition/immune-support) and [energy metabolism](/ingredients/condition/energy). The high bioavailability of heme iron enhances red blood cell production while zinc activates T-lymphocytes for immune defense. ## Health Benefits - Supports [immune function](/ingredients/condition/immune-support) with zinc, a mineral that activates T-cells, crucial for fighting infections and maintaining a robust immune system. - Enhances energy levels with B vitamins, essential for converting food into energy, improving [stamina](/ingredients/condition/energy) and reducing fatigue. - Promotes red blood cell production with iron, vital for transporting oxygen throughout the body, enhancing endurance and vitality. - Boosts [skin health](/ingredients/condition/skin-health) with vitamin E, an antioxidant that protects cells from damage, improving skin texture and appearance. - Supports [bone health](/ingredients/condition/bone-health) with phosphorus, working with calcium to build strong bones, reducing fracture risk. - Improves [cognitive function](/ingredients/condition/cognitive) with choline, a nutrient that supports neurotransmitter synthesis, enhancing memory and learning. - Reduces [inflammation](/ingredients/condition/inflammation) with selenium, an antioxidant that lowers [oxidative stress](/ingredients/condition/antioxidant), decreasing chronic disease risk. ## Mechanism of Action Heme iron from bison spleen bypasses the divalent metal transporter and is absorbed directly through heme carrier protein 1, providing superior bioavailability compared to non-heme iron. Zinc activates thymulin and supports [T-cell](/ingredients/condition/immune-support) differentiation through zinc finger transcription factors. B-complex vitamins, particularly B12 and folate, serve as cofactors in DNA synthesis and methylation pathways essential for red blood cell maturation. ## Clinical Summary Direct clinical trials on bison spleen powder are limited, with most evidence extrapolated from organ meat and individual nutrient studies. Heme iron studies show 15-35% absorption rates compared to 2-20% for non-heme sources in trials of 50-200 participants. Zinc supplementation studies demonstrate improved immune markers in deficient populations, with 10-15mg daily showing benefits in randomized controlled trials. Evidence remains preliminary for whole organ supplementation effects. ## Nutritional Profile - High in zinc and B vitamins. - Rich in iron and selenium. - Contains specific proteins for detoxification. ## Dosage & Preparation Typical dosage is 250-500 mg per day. Consult a healthcare provider before use. ## Safety & Drug Interactions Bison spleen powder may cause gastrointestinal upset including nausea and constipation, particularly at higher doses. High iron content can interfere with zinc and [calcium absorption](/ingredients/condition/bone-health) when taken simultaneously, and may interact with tetracycline antibiotics and levothyroxine. Individuals with hemochromatosis or iron overload should avoid use. Pregnancy safety has not been established for concentrated organ supplements beyond normal dietary intake. ## Scientific Research Research on organ meats like bison spleen suggests they are nutrient-dense, supporting various health functions, though specific studies are limited. ## Historical & Cultural Context Bison spleen has been a part of Native American diets, valued for its rich nutrient content and energy-providing properties. ## Synergistic Combinations Zinc, Selenium, Iron ## Frequently Asked Questions ### How much iron is in bison spleen powder? Bison spleen typically contains 18-25mg of heme iron per 100g serving, which is significantly more bioavailable than plant-based iron sources. A typical 3-6g serving provides approximately 3-6mg of highly absorbable heme iron. ### Can bison spleen powder replace iron supplements? Bison spleen powder can provide bioavailable heme iron but may not deliver therapeutic doses needed for severe iron deficiency. Consult a healthcare provider to determine if organ meat supplements can meet your specific iron requirements. ### What does bison spleen powder taste like? Bison spleen powder has a mild, slightly metallic taste that's less intense than liver powder. Many people mix it into smoothies, capsules, or ground meat to mask the organ meat flavor. ### Is grass-fed bison spleen powder better? Grass-fed bison spleen typically contains higher levels of omega-3 fatty acids and fat-soluble vitamins compared to grain-fed sources. It also avoids potential contaminants from conventional feed and provides a more natural nutrient profile. ### How long does it take to see benefits from bison spleen powder? Energy improvements from B-vitamins may be noticed within 1-2 weeks of consistent use. Iron status improvements typically take 6-8 weeks to reflect in blood markers, while immune function benefits may develop gradually over 2-3 months. ### Is bison spleen powder safe to take with blood thinners or anticoagulant medications? Bison spleen powder is rich in vitamin K, which plays a role in blood clotting and may interact with anticoagulants like warfarin or dabigatran. If you are taking blood-thinning medications, consult your healthcare provider before adding bison spleen powder to your regimen, as they may need to monitor your levels or adjust your dosage. Consistency in intake is important, as sudden changes in vitamin K consumption can affect medication efficacy. ### What is the recommended daily dosage of bison spleen powder for immune support? Most manufacturers recommend 1–2 grams (approximately ¼ to ½ teaspoon) of bison spleen powder daily for general immune support, though optimal dosage may vary based on individual needs and product concentration. It is best taken with food to enhance absorption and minimize any potential digestive upset. Starting with a lower dose and gradually increasing allows your body to adjust to the supplement. ### Who should avoid bison spleen powder, and are there any contraindications? Individuals with iron overload conditions (hemochromatosis), bleeding disorders, or those scheduled for surgery should avoid bison spleen powder due to its high iron and vitamin K content. Pregnant or nursing women should consult a healthcare provider before use, as the concentrate form differs significantly from dietary amounts. People with allergies to bison or organ meats should also avoid this supplement. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*