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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.
| Nutrient | Amount / %DV |
|---|---|
| Iron | 58% |
| Molybdenum | 27% |
| Vitamin B7 (Biotin) | 11% |
| Vitamin D3 (Cholecalciferol) | 9% |
| Selenium | 8% |
| Vitamin B12 (Cobalamin) | 7% |
| CoQ10 | 1.63 µg |
*Percent Daily Value (%DV) based on FDA Daily Values for adults and children 4+. Nutrient values shown are derived from laboratory testing of a single production lot and should be considered guidelines. As a natural whole-food product, nutrient levels may vary between lots.
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.
Ironclad is specifically formulated to support healthy iron levels, energy and recovery, by combining beef spleen and bison heart — two organs uniquely rich in heme iron and its critical cofactors. While Beef Organs provides broad-spectrum micronutrition, Ironclad focuses more narrowly on iron support and post-exertion recovery.
If your primary goal is replenishing iron, restoring energy after physical stress, or supporting endurance, Ironclad is a more targeted option.
Yes. Every batch is tested for heavy metals and microbial contaminants (bacteria, yeast, mold), among other quality checks. You can find the results above the "Add to Cart" button above.
Ironclad may be a great fit if you:
Whether you’re an athlete, someone under high physical or mental stress, or someone who is simply looking to support your energy and resilience, Ironclad helps restore iron levels and recovery capacity naturally.
Unlike synthetic iron supplements, Ironclad delivers heme iron, the form of iron naturally found in animal tissues – and the form most easily absorbed by the body. Ironclad also includes essential cofactors that support proper iron utilization. This whole-food approach helps the body regulate iron effectively and naturally, without the downsides of synthetic iron supplements.
Yes. Ironclad is 100% animal-derived, containing no fillers, additives, or plant-based ingredients. It fits seamlessly into carnivore, keto, and animal-based diets and provides iron support without the antinutrients commonly found in plant-based foods.
Yes. Iron plays a critical role in oxygen transport and red blood cell production, both of which are essential for recovery after physical exertion. Ironclad supports recovery by replenishing iron stores, improving oxygen delivery to muscles, and supporting cellular energy and recovery.
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.
