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Bison heart and beef spleen to replenish iron, restore energy, and speed recovery after physical stress.
Bison heart and beef spleen to replenish iron, restore energy, and speed recovery after physical stress.
Helps maintain healthy iron levels
Aids post-workout recovery
Contributes to lasting energy
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Take five capsules once per day. If you’re new to organ supplements, start with 1-2 capsules per day and gradually increase by one capsule daily.
For best results, use consistently as part of your routine.
Need guidance? We’re here to help.
All orders ship from our warehouse within two business days (often on the same day).
If you're not satisfied with our products for whatever reason, you have 60 days to return them for a refund (excluding shipping fees).
Ironclad combines bison heart and beef spleen to deliver highly bioavailable heme iron, copper, and selenium—nutrients critical for rebuilding red blood cells and sustaining energy after exertion. This blend helps the body recover from training, stress, or low iron states by restoring oxygen delivery and resilience. CoQ10 from heart tissue further supports cellular energy and recovery, helping you bounce back stronger.
With highly bioavailable heme iron, cofactors, and unique spleen peptides, Ironclad fuels endurance, faster recovery, and resilience in demanding conditions.
Heart and spleen have long been consumed for their role in resilience and recovery. Rich in heme iron, copper, and unique peptides, these organs supported our ancestors’ ability to endure long hunts, recover from exertion, and thrive in harsh environments. Ironclad builds on this tradition by pairing bison heart and beef spleen into a convenient, potent source of natural iron, cofactors, and peptides—fueling oxygen delivery, endurance, and recovery without the downsides of synthetic iron supplements.
We prioritize purity and potency with rigorous third-party lab testing at every stage of production. Transparency matters, so we make our test results available in our help center. You can learn more about our five-stage testing process in this blog article.
Our supplements come in amber glass bottles with metal lids (never plastic). Dark glass helps preserve nutrient integrity by protecting against light and oxygen, while eliminating the risk of microplastic leaching. It’s safer for you, better for the environment and fully recyclable — giving you peace of mind with every bottle.
100% pure, additive-free, and sourced from regeneratively raised U.S. bison and grass-fed, grass-finished U.S. cattle. No hormones, antibiotics, pesticides, or GMOs. Freeze-dried for maximum nutrient retention. Ironclad is resilience the way nature intended.
Beef Liver is nature’s multivitamin — rich in preformed Vitamin A (retinol), B12, heme iron, copper, choline and folate. These nutrients support energy metabolism, skin and collagen integrity, immune function, thyroid health, and red‑blood‑cell formation.
Yes. Every batch is tested for heavy metals and microbial contaminants (bacteria, yeast, mold), among other quality checks. You can find the results in our help center.
The standard serving is five capsules per day. New to organ supplements? Start with 1-2 capsules and ramp up over several days. Take them all at once or split doses — both approaches work.
Any time. Many customers take it with their first meal. Consistency matters more than timing, and you can split the serving across the day.
Ye. Great pairings include Ironclad or Female Vitality (for extra iron support), Bone & Marrow, and Collagen & Colostrum. Avoid doubling up on liver‑heavy formulas (e.g., Beef Organs) unless you're aiming to increase your intake of specific micronutrients (e.g., Vitamin A).
Yes. You can open the capsules and sprinkle the contents on food or mix into a cool beverage. Expect a naturally rich, meaty aroma; avoid high heat to protect nutrients.
No. There have not been any reported cases of vitamin A toxicity from consuming the liver of ruminant animals (e.g., cows). All reported instances stemmed from consuming synthetic supplements or polar bear/seal liver (both of which have dramatically higher levels of Vitamin A than beef liver).
At MK Supplements, we’re more than just a brand—we’re a family dedicated to real health, real food, and real results. The Kummer family believes in the power of ancestral nutrition, sourcing only the purest, regeneratively raised ingredients to fuel your body the way nature intended. We use what we sell, we live what we teach, and we stand behind every bottle.
