The magnesium series is finished, and the useful thing it turned up was not about magnesium.
I could document the removal in detail. Breeding for yield diluted the mineral content of the grain. Milling takes out roughly eighty percent of the magnesium with the bran and the germ. The 1941 enrichment standard put five things back into white flour and magnesium was not one of them. The Rothamsted archive, which has kept wheat samples since 1843, shows the mineral content holding steady for a century and then falling from the 1960s, while the soil itself did not change.
Every link in that is on the record. None of it is disputed.
And at the end of four posts I could not tell you whether any of it has harmed you. Not because I did not look. Because the measurement does not exist, and it does not exist for a reason that applies to far more than magnesium.
We left the reference condition and did not write it down
For most of the time there have been humans, people ate whatever the landscape produced. I am not going to claim that diet was optimal — I do not know that and neither does anybody else. What I will claim is narrower and harder to argue with: it was the condition the body’s regulatory systems were calibrated against. Every absorption mechanism, every storage decision, every hormonal setpoint was tuned by natural selection to that input, because there was no other input to be tuned to.
Then, inside roughly a century, we replaced it. Not gradually and not by accident — deliberately, industrially, for shelf life and yield and cost.
Nobody measured the old condition before it went. There was no reason to. You do not take a baseline of a thing you have no idea is about to change, and in 1900 nobody was running serum panels on people eating stone-ground flour in order to preserve a record for us.
So the reference is gone, and there is no copy of it.
Which means every number you are given is measured against the wrong zero
This is the part that took me four posts to see properly, and it is worse than it sounds.
When a laboratory tells you a value is normal, normal means typical of the population they sampled. That population eats the modern food supply. All of it does. So the reference range is a description of people already inside the condition — it cannot tell you whether the condition itself is a problem, any more than measuring the average temperature in a burning building tells you the building is not on fire.
The same applies to how requirements get set. A recommended intake is derived largely from studying people who are already eating this way and observing what keeps them from visible illness. That produces a number that is honest about what it measured and silent about what it did not.
None of this is fraud. Every one of those numbers was produced carefully by people doing the job properly. The problem is structural and it sits underneath all of them: we are estimating what is normal for a human using a sample in which no human is living under the conditions the species was built for.
Geoffrey Rose said this in 1985 and it is still the most important sentence in the field
A cause that is universally present cannot be detected by studying variation within a population.
If everyone is exposed, there is no unexposed group. The comparison that would reveal the effect does not exist to be run. You can study why one person in the exposed population fares worse than another — and the field does, endlessly — but you cannot study the exposure itself, because it has no contrast.
That is why the magnesium question has no answer. Not because the question is silly, and not because somebody is hiding something. Because everybody eats from the same food supply, and the experiment that would settle it would require a group of people who do not.
The dangerous part is what unmeasurability does to accountability
Here is the whole thing in one line: a change you cannot measure is a change nobody has to answer for.
In the twentieth century we fixed a specific set of nutritional deficiencies by national mandate — iodine, vitamin D, thiamin, niacin, riboflavin, iron, folate. Every one of them produced a visible, nameable disease you could photograph. Committees acted, and they acted quickly, and they were right to.
We left another set alone. Magnesium, zinc, potassium, copper, manganese. Every one of those produces only a shift in a distribution — no syndrome, no photograph, no name.
The rule that sorted them was not harm. It was visibility. And that rule is still running, right now, deciding which problems get programs and which get nothing, with no reference at all to how much damage is actually being done.
So the shortfalls that are measurable got fixed, and the shortfalls that are not stayed exactly where they were, and will, because there is no instrument that would make anyone accountable for them and nobody is funding one.
The reason any of this exists
I should say plainly why I started looking, because it is not an academic interest and it would be dishonest to present it as one.
At sixty-six I was obese and failing. Fatty liver disease. Arthritis. Chronic fatigue. Mental fog. Back pain I had carried since high school. Daily pills and painkillers. And I had not been careless about any of it — I had been disciplined, for five decades, about a rule I never once made defend itself.
Then I changed what I ate. Within a year I had lost seventy pounds. The fatty liver cleared. The back pain went. The fog lifted. The arthritis in my hands disappeared. The pills and the painkillers stopped.
Five years later, at seventy-one, I take no medications and have had no procedures. It has not come back.
That is the reason this page exists. Not a theory I went looking to confirm — a result that arrived first, before any of the reading did, and left me with a question I could not put down: if a single change could reverse that much, in a man who had done everything he was told, then what exactly had I been eating for fifty years?
Everything on this page is downstream of that question.
And it was not an experiment of one
It did not start with me, and the part that matters is not what happened to me.
It started at a dinner. An old friend told me that something I had said to him more than twenty years earlier had changed the way he ate, and that he had eaten that way ever since. I could not remember the conversation at all. He had been living the result for two decades before he sat down and handed it back to me.
He had not recovered from anything. He never got sick.
That is the part I keep returning to. Two men, the same information, in the same room, on the same evening. One of us acted on it and did not develop any of what came for me. The other said it out loud, forgot he had said it, went on following the official advice for another twenty years, and arrived at sixty-six obese and failing.
I was the source, and I was the one who did not take it.
So we are not two instances of one experiment. We are two different experiments pointing the same direction. He tested whether the condition could be avoided. I tested, two decades later and at considerably greater cost, whether it could be reversed. He is not a second case of my result. He is the closest thing to a counterfactual I will ever have — the man who got the same information at the same moment and used it.
And what I did with it was an experiment rather than a story.
The intervention was a single variable. I removed one category of food. I did not add a drug, add a supplement, start a program, take up an exercise regime, change my work or change anything else I could hold still. Most people who overhaul how they eat overhaul eight things at once and afterward cannot tell you which one moved the needle. I changed one and held the rest, because that is how you find out what a change did.
It was documented rather than recalled. Weight before and after, from records and not from memory. A laboratory panel, published in full, including the one value on it I would rather not show anybody.
And it was reasoned about rather than merely experienced. I spent a career as a physical chemist studying how systems hold together and how they come apart. I knew which explanations were available, which measurements would distinguish between them, and where to go and read. Most accounts like mine come from people with the outcome and no access to the mechanism — who cannot separate a cause from a coincidence and do not know what would have falsified their own story, which means nothing they report can be checked, including by them.
And then there are all the others
Since that dinner I have read a very large number of accounts of the same shape. So, probably, have you.
I want to be careful about what those are and are not worth, because this is where people in my position usually overreach.
They cannot give you a rate. There is no denominator. You never see the people it did not work for — they do not write it up, nobody is counting them, and the selection runs one direction and runs hard. A thousand accounts of success are compatible with a hundred thousand failures nobody recorded. Anyone citing volume as proof is doing arithmetic with a missing number.
What they are is a convergent signal. A large number of people, with little else in common, describing the same intervention and the same shape of outcome, with a mechanism that is at least coherent.
In any other field that is the thing that prompts somebody to run the study. It is how most clinical questions start — enough case reports accumulate that a trial becomes obviously worth funding.
No such study exists. Not one that isolates the variable, with a control arm, at a size that would settle it. The signal has been accumulating for years in plain view and it has nowhere to go, because nobody has built the instrument and nobody is paying for one.
Which is the same finding as the rest of this piece, arriving from the other direction.
But it is also how this actually travels
There is a second thing those accounts are, and it took me a while to see it.
When the formal channel is closed — no trial, no instrument, no program, nobody funding one — knowledge does not stop moving. It moves the old way. One person tells another, usually across a table, usually because something happened to them that they cannot keep quiet about.
That is exactly how it reached me — and how it reached him before me. A man I had known for decades, at a dinner, telling me that something I said twenty years earlier and completely forgot saying had changed what he ate for the rest of his life. He was not citing a study. He was handing back something I had passed on without knowing it.
Everything since is the same transaction at a larger scale. The book is that conversation written down. This page is the same thing, continued.
I am not going to pretend that channel is any good. It is slow and lossy, it has no error correction, and it carries nonsense exactly as efficiently as it carries anything true. The same dinner table that brought me this brings somebody else a supplement scheme and a testimonial from a man who does not exist. You cannot tell the two apart by the channel they arrived through.
That is the entire reason I document what I document and say where I stop. It is not fastidiousness. It is the only thing that distinguishes one of those conversations from the other.
But it is what is left. When nobody builds the instrument, the thing still working is people telling each other what happened to them — and taking the trouble to say how they know.
Where that leaves the evidence
One man who made the change early and did not get sick, followed for twenty years. One man who made it late and came back, run as a deliberate single-variable intervention with records kept. A large and growing body of reports I cannot put a denominator under. And no trial.
That is not proof and I will not call it proof. It is also not nothing, and the people who dismiss the whole category as anecdote are making the opposite error — treating the absence of a study as though it were a negative result, when no study was ever run.
Rose says the comparison cannot be run, because everybody is exposed and there is no unexposed group to measure against. Between the two of us we had one anyway, by pure accident of circumstance — one man who stepped outside the exposure early and one who did not step outside it for another twenty years. It is a sample of two and it was not designed by anybody. It is still more of a comparison than the literature contains.
That is the only reference point any of us has ever had. And having had one is how I noticed that everybody else is working without it.
What this means for you, and it is not comforting
You cannot look this up.
Not because the information is suppressed or hard to find. Because it was never recorded. The condition your body was built for ended before anyone thought to document it, and the people measuring you today are measuring against what is ordinary now.
That is the no-man’s-land. We are far enough from the original condition that it no longer constrains anything, and we have no record of it to navigate by — so every claim about what is good for you, mine included, is being argued in a space with no fixed point in it.
I am not going to end this by telling you what to eat. I do not have the evidence for that and neither does anybody who says it with confidence.
What I will say is that the next time you are told a value of yours is normal, it is worth remembering what that word is actually reporting. It means you resemble the people around you. It has never meant anything more than that, and in a population where everyone shares the same exposure, resembling each other is not the reassurance it sounds like.
On Saturday: what I did about all of it, the audit I promised at the start of this series, and the four things in my cabinet that contradict half of what I have just told you.