The Triage Theory: Why Micronutrient Damage Happens Silently, Long Before Symptoms Show

A modest vitamin or mineral shortage — not severe enough to cause an obvious symptom — doesn't just quietly do nothing. According to the triage theory, first proposed by biochemist Bruce Ames, the body responds to scarcity by rationing: it protects the functions needed for immediate survival and lets the functions needed for long-term repair go without. The damage from that trade-off is real, it accumulates, and it's invisible until years later. This is the actual scientific case for testing before something feels wrong, rather than waiting for a symptom that, by design, shows up late.

Micronutrient allocation editorial artwork

Who this is for

Anyone who's wondered why VIGEO tests proactively rather than waiting for a specific complaint — and anyone who assumes "no symptoms" means "no problem."


What the triage theory actually says

Bruce Ames spent much of his career at UC Berkeley studying DNA damage and aging — he's also the scientist behind the Ames test, a standard tool still used to screen chemicals for cancer-causing potential. In 2006, he published a theory in the Proceedings of the National Academy of Sciences that reframed how modest micronutrient deficiency should be understood.

His argument: natural selection favors short-term survival over long-term health. When a vitamin or mineral is in short supply, the body doesn't fail evenly across all the jobs that nutrient does. Instead, it triages — protecting the enzymes essential for immediate survival and reproduction, and quietly starving the enzymes whose only job is long-term maintenance and repair. Ames used a simple example: if iron is scarce, the body pulls it toward the heart, where a shortage would be immediately fatal, and away from less urgent uses first.

The consequence is damage with no warning label. The functions being sacrificed are exactly the ones that prevent slow, cumulative harm — DNA repair, mitochondrial maintenance, oxidative defense. None of that shows up as a symptom today. It shows up as accelerated aging and disease risk, years down the line.


Ames took this further: not all vitamins are asking for the same amount

In a 2018 follow-up paper, Ames and a colleague proposed that some vitamins and minerals have two separate dose-response curves — one dose is enough to satisfy the short-term survival function, and a meaningfully higher dose is needed to activate the long-term protective function. He named these "longevity vitamins."

Vitamin K is one of his own examples. A small amount is enough to support blood clotting — the survival function. But the dose needed to support long-term cardiovascular protection appears to be higher. He named selenium as a parallel case, for the same reason.

This matters here specifically because it means the standard question — "is this vitamin deficient, yes or no" — can miss the point. A level that's technically adequate for survival can still be well short of what's needed for long-term protection. A single pass/fail cutoff doesn't capture that gap. A tissue-level reading, tracked over time, is much better positioned to.


Dawn's own version of the same idea

This book has described mineral balance as behaving more like cash flow than a savings account: minerals are constantly being used, exchanged, and regulated in real time, and when the budget runs short — from poor diet, stress, or toxicity — the body doesn't simply run empty. It makes trade-offs, pulling resources away from long-term maintenance to cover short-term needs.

That's the triage theory, described in plain terms, independently arrived at from years of reading OligoScan patterns. The mechanism Ames formalized in a research paper is the same mechanism this book uses to explain why symptoms and test results don't always show up together.


Why this is the actual case for testing, not just a philosophy

If the damage from a modest deficiency is designed by evolution to stay invisible until it's compounded over years, then waiting for a symptom before testing means the shortage has already had time to work. That's the whole argument for periodic testing as a habit, not a response to a complaint — the entire premise behind "test, don't guess."

This isn't a claim that every ache has a hidden triage-related cause behind it. It's a specific, falsifiable, published hypothesis about why modest, sub-clinical deficiencies matter more than they seem to — and it's held up well enough to generate a decade of follow-up research from the same lab.


What this article does not tell you

  • The triage theory is a well-supported hypothesis, not a settled, universally proven mechanism for every nutrient. It's an active area of ongoing research, and Ames himself frames it as a model that continues to be tested against new evidence.
  • This doesn't mean every symptom is nutrient-related, or that testing replaces a medical workup for something that's actually wrong.
  • A single OligoScan is a snapshot. The triage argument is really an argument for tracking trends over time — covered here — not for any one test result on its own.

Go deeper

The full breakdown of triage theory alongside specific mineral case studies is covered in Dawn's forthcoming book.

Join the launch list at oligoscanbook.com


References and further reading

  1. Ames BN. Low micronutrient intake may accelerate the degenerative diseases of aging through allocation of scarce micronutrients by triage. Proc Natl Acad Sci U S A. 2006;103(47):17589-17594.
  2. McCann JC, Ames BN. Prolonging healthy aging: Longevity vitamins and proteins. Proc Natl Acad Sci U S A. 2018;115(43):10836-10844.
  3. McCann JC, Ames BN. Adaptive dysfunction of selenoproteins from the perspective of the triage theory.
  4. Ames BN. Presentation, A4M (American Academy of Anti-Aging Medicine).
  5. VIGEO Health Medical Disclaimer

Questions and Answers

Q: What is the triage theory? A: A theory proposed by biochemist Bruce Ames stating that when a vitamin or mineral is in short supply, the body prioritizes the functions needed for immediate survival and sacrifices the functions needed for long-term repair and maintenance — accumulating invisible damage over time.

Q: Who is Bruce Ames? A: A biochemist known for the Ames test, a standard tool used to screen chemicals for cancer risk. He published the triage theory in the Proceedings of the National Academy of Sciences in 2006.

Q: What are "longevity vitamins"? A: A term Ames introduced for nutrients where a small dose covers short-term survival needs, but a meaningfully higher dose is needed to activate long-term protective functions. He named vitamin K and selenium as examples.

Q: Does this mean I should test even without symptoms? A: That's the core implication of the theory — because the damage from a modest deficiency is designed to stay silent until it accumulates, waiting for a symptom means the process may already be well underway.