Health
The Liver King was on steroids — and 'ancestral' is not a safety certificate
For years the Liver King preached purity. Brian Johnson — bare-chested, gym-jawed, a side of raw bull testicle dangling from his hand — told millions of followers that the secret to his physique was "ancestral": eat the organs your great-great-grandfather ate, live the way nature intended, and the body you were born for will emerge. Then, in 2022, his leaked emails surfaced. He was on roughly eleven thousand dollars a month of anabolic steroids. The most viral "natural" body in the world was a pharmacy. That is the whole problem of "ancestral" eating in a single, almost too-perfect scene: the word natural was never describing the cause. It was hiding it.
The capsule that promises you a cave
Strip the steroids away and a real trend remains, bigger in 2026 than ever: freeze-dried beef organ capsules — liver, heart, kidney, spleen — sold by brands like Ancestral Supplements on a single, sticky premise. Organ meats were "central to human nutrition," they say, and modern life has "overlooked" them. Eat like your ancestors. And here is the uncomfortable part for skeptics: the nutrition claims are mostly true. Beef liver really does carry more vitamin A than carrots, more iron than spinach, more B12 than any other food, in forms your body absorbs beautifully. Liver is one of the most nutrient-dense things you can put in your mouth. I am not going to pretend otherwise, because the trick of this trend isn't a lie about nutrients. The trick is what the word ancestral is quietly doing to your reasoning.
"Natural" is an origin label, not a safety rating
Randolph Nesse and George Williams, the founders of Darwinian medicine, spent a whole book — Why We Get Sick — dismantling one seductive idea: that what our ancestors did is automatically what's good for us. Their core finding is colder and more useful than any superfood claim. Natural selection does not optimize for your health, your longevity, or your happiness. It optimizes for one thing only: getting genes into the next generation. A trait can wreck you at sixty and still be "favored" if it helped you reproduce at twenty-five. So "ancestral" tells you a body survived long enough to breed — it tells you nothing about whether a habit is good for a long, comfortable modern life. Knowing a mushroom grew wild in an ancient forest tells you exactly nothing about whether it will season your soup or stop your heart. "Natural" is a label about where something came from. It is not a rating of whether it's safe.
Where the appeal to nature quietly breaks
Nesse and Williams have a name for the engine behind half of modern disease: mismatch. Our bodies were tuned over millions of years for a Stone-Age world of scarcity, then dropped into a world of abundance they never saw coming. Their own evidence is brutal: Japanese immigrants who adopted a high-fat American diet died of sudden heart attacks at roughly twice the rate of the relatives they left behind — same genes, different environment, different ending. Cravings for fat and sugar weren't flaws; they were ancient lifesavers, gone wrong in a world of plenty. Now watch what the supplement does with this idea. It borrows the romance of "ancestral" — and then commits its own modern artifact. Your ancestor ate liver the way mismatch theory actually describes it: occasionally, seasonally, nose-to-tail in the days after a kill, then not again for weeks. A capsule you swallow every single morning, all year, is not a return to the cave. It is a brand-new modern invention wearing a fur pelt.
The dose your ancestors never took
This is where the romance meets a hard wall, and the wall has a name. Paracelsus, five centuries ago: the dose makes the poison. Liver's crown jewel — preformed vitamin A, retinol — is also its trap. Vitamin A is fat-soluble. Unlike the water-soluble vitamins you flush out in your urine, it accumulates: it banks itself in your liver and fat, day after day, dose after dose. Eat liver occasionally in a normal meal and you are fine. Take a concentrated organ capsule every morning for a year and you can drift into hypervitaminosis A — vitamin A toxicity — which can mean headaches, bone pain, even liver damage. And in pregnancy the stakes turn sharp: excess preformed vitamin A is teratogenic, a real birth-defect risk. The danger was never in the liver. It was in the word every and the word daily — the exact thing your seasonal ancestor never did.
So is liver bad for you? No — and here's the line
Let me pre-empt the obvious pushback, because the nuance is the whole point. Liver is not bad for you. The nutrients are not fake. For most people, eating liver in food amounts, now and then, is genuinely good nutrition. The line is not between "natural good" and "processed bad." The line runs through dose and frequency. What this means for you, concretely: enjoy liver as food if you like it. Be cautious with concentrated organ capsules taken daily, because the fat-soluble vitamin load is a real, accumulating risk, not a marketing scare. If you are pregnant or might become pregnant, treat high-dose vitamin A as a flag, not a footnote. And remember a supplement is supportive nutrition — it doesn't treat or cure any disease, whatever the testimonial says. Before you start a daily protocol, talk to a clinician who can check your actual numbers. And when the influencer tells you it's safe because it's ancestral, remember: one large German analysis found around 70% of influencer-marketed supplements carried misleading claims. Ancestral is a story. A story is not a safety certificate.
"Ancestral" is an origin story, not a dose label
Selection built you to reproduce, not to live long and well — so "what your ancestors ate" is a marketing romance, while the actual risk lives in the one thing they never did: a concentrated dose, every single day.
Framework from Randolph Nesse & George Williams, Why We Get Sick: The New Science of Darwinian Medicine — natural selection optimizes reproductive success, not health, longevity, or happiness; evolutionary "mismatch"; and the appeal-to-nature fallacy (natural ≠ good). Supplement and "ancestral" marketing details, the Liver King (Brian Johnson) steroid disclosure, the ~70% misleading-claims figure, and the vitamin A toxicity facts are drawn from public reporting and basic nutrition science. The book was consulted via an OCR scan, so figures and the immigrant-heart-disease example should be checked against the original work. This is popular science, NOT medical advice: vitamin A is fat-soluble and accumulates, high daily doses risk hypervitaminosis A, and excess preformed vitamin A is especially dangerous in pregnancy (birth-defect risk). Consult a doctor before starting any supplement.