How the food broke us
Twelve thousand years of context, compressed. Why a metabolism that worked for forty thousand generations stopped working in the last three.
12,000
Years of context
9
Turning points
109
Sources behind it
It was never a failure of discipline
If you have ever wondered why eating less and moving more stopped working, the answer is not hiding in your willpower. It is in a chain of decisions made by industrial chemists, federal committees, and shareholders — most of which had very little to do with nutrition science.
What follows is the short version, one turning point at a time. None of it is conspiracy. All of it is documented, and most of it was reasonable-sounding at the moment it happened.
The body that evolved over forty thousand generations of foragers met a food supply that changed twice in three.
Biology adapts on a timescale of millennia. Food manufacturing reformulates on a timescale of quarters. That mismatch is the whole story.
Nine turning points, one direction
Tap any marker to read what changed and why it stuck. Scroll the rail sideways to move through twelve thousand years.
Agriculture begins
Humans transition from foraging to farming. Average stature drops by roughly four inches over the next several thousand years. Dental caries appear in skeletal records for the first time at scale. The Paleolithic body meets the Neolithic plate.
Which story survives the data?
Two hypotheses explain the same curve. A hypothesis is only worth keeping if its predictions hold. Switch between them and check.
If the problem is the food supply
The alternative: the food was re-engineered faster than the biology could adapt, and satiety signalling is the casualty.
What it predicts
- Disease should follow the food supply, not the culture
- Same person, different food environment, different intake
- Restoring satiety signalling should reduce intake without effort
What we observe
- Inuit, Pima, and recently-urbanised populations follow the food, not the flag
- Controlled feeding trials show large intake differences on matched diets
- GLP-1 medication restores part of that signalling and intake falls
The environmental story predicts what we actually observe.
Plainly, then
The human metabolism did not fail. It met a novel environment — calories abundant, satiety signals scrambled, sleep light-polluted, movement optional, stress ambient. Every population that adopts that environment, from Inuit to Pima to recently urbanised rural Chinese, develops a similar pattern of metabolic disease on a similar timescale.
That is not coincidence. It is causation sitting in plain sight. And it means the work is changing the inputs — not flogging the system that received them.
Which inputs matter most is not the same for everyone. Sleep and stress dominate for some people; insulin dynamics dominate for others. That is what the assessment is for.
What the literature says next
Check the receipts
The full story — the NIH ultra-processed feeding trial, the McGovern committee record, and the metabolic-adaptation literature from Rosenbaum and Leibel — sits in the research library. Every milestone on this page sources back to peer-reviewed work.
The history, questioned
Fair objections to all of this
No. Whole, intact carbohydrate sources — legumes, tubers, intact grains, fruit — show up in some of the healthiest long-studied dietary patterns on the planet. The historical shift that tracks with metabolic disease is not carbohydrate as a molecule, it is what industry did to the matrix around it.
Stripping fibre, bran, and structure changes how fast a food is absorbed and how much of it a person eats before feeling done. That is a processing story more than a macronutrient story, which is why we audit protocols on evidence and adherence rather than on which macro they demonise.
Tracks with the damage
- Refined and fibre-stripped carbohydrate
- Ultra-processed formulations engineered for palatability
- Calorie-dense food eaten faster than satiety can register
Does not, on the evidence
- Legumes, lentils, and intact whole grains
- Tubers eaten as whole food
- Whole fruit in ordinary quantities
Educational only. Nothing on this page replaces advice from your own clinician.
History explains the pattern. The assessment explains yours.
About two minutes, no email wall, and it maps your answers to the protocol the literature actually supports for your pattern.
Educational only, not medical advice. Historical and population-level findings do not predict any individual outcome. Consult your physician before major dietary changes or altering prescribed medication, including GLP-1 therapy. These statements have not been evaluated by the Food and Drug Administration. Individual results vary; no outcome is guaranteed.