Grass-fed beef liver
The densest dietary source of B12, retinol, copper, and heme iron on earth.
Foundation. Energy. Methylation. Without it, the rest stalls.*The work is the work. Sleep is sleep. The thing modern food can't give you is the nutrient density your body needs to actually use what you put it through. Real food does. Beef organs do. Two capsules.
Freeze-dried liver, heart, kidney, marrow. NZ grass-fed. No prep.
If your training has stalled and your supplement stack isn't doing it — the gap isn't effort. It's the food.
You're already showing up. Lifting four to six days a week. Eating cleaner than most people. Pre-workout, protein, probably a multi, maybe creatine. The work is real.
But the modern food supply doesn't carry what it used to. Soil depletion stripped magnesium, zinc, and selenium from produce. Grain-finished beef carries a fraction of the heme iron, CoQ10, and methylated B12 of its grass-fed ancestor. Synthetic isolates in your multi are absorbed at 2-10% rates. Whey protein covers leucine and a few aminos — and almost none of the cofactors muscle recovery actually needs.
You're not under-training. You're under-fed.
Your great-grandfather lifted hay bales, ate liver on Sunday, and recovered faster than you do — without protein powder, pre-workout, or a fitness app. Because the food carried the cofactors. Most modern stacks miss the foundation entirely.
Protein powder hits the muscle-protein-synthesis box, but the cofactors recovery actually needs — heme iron, B12, CoQ10, real-food zinc — aren't in whey. That's why you can hit your protein and still feel beat.
CoQ10 is the cellular energy molecule. Production drops steadily after 30. It's the densest in beef heart — and it's in virtually no multivitamin. If your training feels heavier than it did at 25, this is part of why.
Caffeine, beta-alanine, citrulline — all useful, none of them rebuild tissue. They mask fatigue without addressing why you're fatigued. Real-food cofactors fix the why.
Ferrous sulfate (the iron in most multis) absorbs at 2-10% and irritates the gut. Heme iron from real beef organs absorbs at 15-35% — the form your body was built for.
This isn't a knock on your current stack. It's pointing at what it can't do. You need a foundation underneath it. The nutrient base your great-grandfather got from food, in the same form, in two capsules.
100% grass-fed, finished on grass. No hormones. No grain. Freeze-dried within hours of harvest to preserve every cofactor — the way nature packaged them.
Pennsylvania Farm Show · c. 2003
I grew up showing cattle in 4H in Pennsylvania. I knew where my food came from.
Then college, the standard American diet, and years of being a flatter, foggier version of myself — assuming that was just adulthood. It wasn't. It was the food.
Well-raised beef is the most nutrient-dense food on earth. The densest part — the part every traditional culture ate first — is the organs. Liver. Heart. Kidney. Bone marrow. Modern science calls them superfoods. My grandparents called them dinner.
NutraVantix is me putting them back. Four organs, freeze-dried into two capsules. 100% grass-fed New Zealand pasture. No fillers. No synthetics.
— Clay, Founder
Four organs. Three minerals modern stacks underdose. One absorption multiplier. Nothing else.
The densest dietary source of B12, retinol, copper, and heme iron on earth.
Foundation. Energy. Methylation. Without it, the rest stalls.*Richest natural source of CoQ10 — the cellular energy molecule.
Recovery, output, stamina. The piece your whey can't deliver.*Loaded with selenium, B6, DAO enzymes for thyroid and detox.
Selenium drives thyroid. Thyroid drives metabolism and recovery.*Cholesterol-adjacent fats — the raw material your hormones are built from.
Testosterone is built from these. Modern food has almost none.*The premium form. Deeper sleep, calmer nervous system, free T support.
The most underdosed mineral in modern adults — especially lifters.*Most bioavailable form. Critical for testosterone production and immunity.
Modern intake almost always lags training-level requirement.*Clinically-studied piperine — multiplies absorption of fat-soluble nutrients.
Boosts absorption by up to 30% — the ingredient most organ supplements skip.*Per 100g, beef organs deliver nutrient density no whey, multi, or plant food can touch. This is what your foundation has been missing.
*Based on per-100g comparison of whole food sources.
Individual results. Testimonials reflect individual experiences and may not reflect the typical purchaser's experience. Results vary.

"45. Lifting four days a week. Sleeping fine. Still felt beat up. Added these to the stack — kept everything else the same. Three weeks in, the day-after soreness backed off. That's the whole story."*

"Was running an iron supp, a B-complex, and a separate CoQ10. Switched all three out for this. Saving money and feeling more, not less. The afternoon energy is different — steadier."*

"Lifted hard for 15 years. Ate clean. Hit a plateau at 38 that nothing budged. Added this six weeks ago. Lifts moved. Vascularity came back. Wife noticed before I did."*
90 days is the standard window for nutrient catch-up. Multi-bottle bundles deliver the lowest per-day price.
If it's not the foundation you hoped for, we'll refund your first bottle. Full refund policy.
Not stimulants. Not a multivitamin. The real-food foundation underneath every other stack. Two capsules a day. Sixty days, risk-free on the first bottle.
Get my supply