Grass-fed organs : are they really the most complete “natural multivitamin”?
According to Dr. Dario Nizzari , a Professional Biohacker, Certified Sleep Coach, and Doctor of Sports Science (specializing in bio-health) with over 7 years of experience in personalized nutrition and precision medicine, bovine organs from pasture-raised animals concentrate micronutrients and bioactive molecules that are often difficult to obtain with the modern diet alone or with traditional multivitamins. biohackerati.com
Many people seek energy, mental clarity, and improved recovery, but can remain “uncovered” on key nutrients like vitamin A (retinol) , B12 , folate , choline , and heme iron . In this article, you'll learn why grass-fed liver, heart, and kidneys are among the most nutrient-dense foods, the differences between raw, cooked, and freeze-dried, and how to effectively read labels and the “fresh vs. powder” equivalencies.
Grass-Fed Organs: The Multivitamin Nature Left Us
Author: Dr. Dario Nizzari
When people think of "superfoods," many think of exotic berries, rare roots, or trendy powders.
The truth? The world's most powerful superfood has been around for millions of years.
It's grass-fed beef liver: the most nutrient-dense food ever analyzed by the USDA, so much so that it's considered by functional doctors, evolutionary nutritionists, and biohackers to be human biology's true natural multivitamin.
And he's not alone.
Ancestral tradition and increasingly modern data suggest a surprising rule:
"Like-supports-like": each animal organ supports the corresponding human organ.
- Do you eat liver? You support your liver (and therefore the DNA methylation process, which, if studied in depth, becomes the key to losing weight, increasing muscle mass, improving sleep quality, and much more).
- Do you eat heart? You support the heart and all tissues with similar energy activity (such as the brain, in fact, the COQ10 found there also benefits memory).
- Do you eat kidneys? It supports kidney health (and therefore electrolyte balance, blood pressure, and much more).
- Do you eat testicles? You'll get greater androgenic vitality and male fertility! Get the idea?
This idea, common to all ancient medicines, is today supported by a growing amount of biochemical data and nutrient-specific analyses.
How nutritious are grass-fed organs really?
Grass-fed organs are among the world's richest sources of:
- Vitamin A (bioactive retinol)
- Vitamin B12 (highly bioavailable forms)
- Natural folate (5-MTHF, not synthetic folic acid)
- Choline
- Highly absorbable heme iron
- Copper
- CoQ10 (in the heart)
- Peptides and growth factors
- Nucleotides and epigenetic cofactors
- Structural proteins such as collagen and elastin
- Enzymes and bioactive molecules that do not exist in traditional supplements
Studies that prove it:
- ✔ Organ meats are among the most nutrient dense foods according to the USDA Nutrient Density (ND) index and related studies (Holland et al., McCance & Widdowson's Composition of Foods).
- ✔ Vitamin A from bovine liver is up to 50 times more bioavailable than plant beta-carotene (Hickenbottom et al., 2002).
- ✔ Heme iron from animal tissues is absorbed 2–4 times more efficiently than non-heme iron from plants (Hallberg et al., 1992).
- ✔ Bovine testes contain testicular peptides, pregnenolone, and growth factors (Wang et al., 2021) essential for HPG axis and male vitality.
- ✔ Beef heart is one of the foods richest in Coenzyme Q10, essential for mitochondrial energy, with concentrations higher than any muscle meat (Kameda et al.).
Raw, cooked, or freeze-dried (cryo-dried): what really makes a difference?
Grass-fed raw
The richest form of all. It retains:
- Intact retinol
- B12 complete
- Natural folates
- Copper + heme iron
- Choline
- Thermolabile peptides, enzymes and bioactive complexes
What if I buy the liver and cook it?
Unfortunately, cooking degrades components. In nature, we didn't cook until we became "COOKIVORS" (an expression used to highlight the evolution of HOMO sapiens), and therefore you lose:
- Vitamin C
- Folates and B vitamins
- Vitamin A (Retinol)
- Some temperature-sensitive peptides
…it retains most of the key micronutrients, but does that mean vitamin A isn't important? It degrades easily, even when boiled, and is one of the most crucial vitamins for testosterone synthesis (much more so than vitamin D, magnesium, and adaptogenic herbs - GUARANTEED).
❄️ And where is the advantage of cryo-drying?
This is the most interesting form for most people:
- It retains up to 97% of nutrients (Ratti, 2001 – Journal of Food Engineering)
- It makes the organs stable, safe and practical
- Concentrates: 7.5 g freeze-dried = ~25 g fresh liver
Result?
Whether you eat it fresh, cooked, or in capsules, liver remains the world's richest food in essential nutrients.
Here you can find the GRASS FED organ capsules from Carnivore Company 🐮
💊 Why do labels look "low"?
Why do many companies only indicate:
- Value per capsule, not per actual serving
- Only nutrients required by law
- They cannot yet indicate many non-regulated bioactive peptides and "ancestral nutrients"
When we convert the values to fresh equivalent, the numbers change completely.
📊 Estimated Nutrition Conversion Tables
Take for example the Carnivore Company's Grass Fed Beef Liver :
One dose is 4500 mg of Cryo-Dried Powder = approximately 15-25 g of fresh liver
Estimated values (source: USDA + biochemical conversions):
- Vitamin A: 1,800–3,000 mcg
- Vitamin B12: 70–120 mcg
- Folate: 60–100 mcg
- Copper: 0.4–0.6 mg
- Heme iron: 1–2 mg
- Choline: 120–200 mg
Why do organs work so well? (The key concept that changes everything)
Organs are more than just a vitamin content.
They carry biological molecules "designed" for specific functions:
- Nucleotides for cell repair
- Organ-specific peptides
- Active enzymes
- Biochemical cofactors
- Organic minerals that the body recognizes best
- Endogenous antioxidants (such as CoQ10 in the heart)
This explains why so many people report:
- More stable energy
- Better skin
- Increased libido
- Faster recovery
- More stable mood
- Reduction of chronic deficiencies
- Improved cognitive and muscular performance
Things that no synthetic multivitamin can match, for one simple reason:
✨ Organs contain nutrients in their original biological context.
The way nature designed them.
Conclusion
What a wonderful article! Let's end with a question :)
If your body could draw on the purest, most ancient, bioidentical form of nutrients every day… how much would your energy, body composition, and longevity improve over the next 12 months?
This is not a trivial question.
Note: This article is for informational purposes only and does not replace the advice of your doctor or other healthcare professionals. If you have a medical condition, pregnancy, medication, or specific concerns, please consult a healthcare professional.
