Longevity Doctor vs Functional Medicine Doctor in Dubai
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Dr. Felix Lucian Happich
MD, MHBA
In short
Overview
Longevity medicine and functional medicine both promise to look deeper than a standard check up. They differ in what counts as evidence that they found something.
Direct Answer
The practical difference is the standard applied before a test is ordered or a treatment is started.
An evidence based approach asks whether the condition causes real harm often enough in someone like you, whether finding it early improves outcomes, and whether the test performs well enough not to cause more trouble than it prevents.
A broad panel approach tends to order first and interpret afterwards, which in a low risk person means most abnormal results will be false.
Who This Applies To
- People deciding where to spend on prevention
- People already on a supplement or hormone protocol who want it reviewed
- People with a long list of test results and no clear plan
- People with real symptoms that a standard check missed
Option Comparison / Decision Criteria
Where the approaches genuinely differ
| Test selection | Evidence based: each test has a question attached, and a test that would not change anything is left out. Broad panel: more data is treated as better |
| Reference ranges | Evidence based: results read against what changes management. Optimal range approaches: narrower targets that are not tied to outcomes |
| Supplements | Evidence based: correct a documented deficiency. Otherwise not, since supplements are rarely tested in randomised trials at all |
| Hormones | Evidence based: regulated products for confirmed deficiency. Compounded mixtures are advised against by the Menopause Society, ACOG and the Endocrine Society |
The problem with broad panels, in numbers
In a group without symptoms most conditions are rare, so a large share of positive results from a weak test will be false. Each false positive then leads to further testing with its own risks.
People also systematically overestimate the benefits of tests and underestimate the harms, which is why a long panel feels safer than it is.
Where the evidence based approach goes deeper
It is not always the shorter list. A coronary calcium score, ordered at borderline or intermediate risk, is a direct look at your arteries. It reclassified 52 per cent of intermediate risk older adults in one study and moved 20 per cent of low risk middle aged women into a more accurate category.
It also outperformed polygenic risk scores for predicting coronary events in two large population studies. That is deeper than any panel.
Why an In-Person Physician Review Matters
What both approaches should agree on Activity, which cut mortality by 27 to 50 per cent depending on how much Not smoking, where counselling plus medication has the strongest behaviour change evidence in medicine Sleep, alcohol and weight Treating high blood pressure and abnormal lipids The disagreement is rarely about these.
It is about what to add on top. The honest position on annual testing General health checks did not reduce mortality across 14 randomised trials and over 180,000 people, though they improved blood pressure, cholesterol and BMI. That finding cuts against comprehensive testing of any philosophy. What is not offered here Compounded hormone mixtures, which ranged from 67.5 to 268 per cent of label potency when tested Saliva hormone testing to guide doses Systemic DHEA in people without adrenal insufficiency, which does not improve function Biological age scores and consumer genomic longevity panels IV infusions and unlicensed peptides If you already have results Bring them. A large panel already paid for can be reviewed, and the useful parts kept. Everything is sorted into three groups: act on this, ignore this, or genuinely uncertain and your choice.
Frequently Asked Questions
The instinct behind it, that symptoms deserve investigation, is right. The disagreement is about the standard of evidence before ordering a test or starting a treatment, and about whether more data is automatically better.
Because in people without symptoms most conditions are rare, so most positive results from a weak test are false. Each one leads to further testing with its own risks, and people consistently underestimate those harms.
Correcting a documented deficiency is worthwhile. Beyond that, supplements are rarely tested in randomised trials at all, so the confident claims made for them do not rest on the same evidence as medicines. Bring the list and it will be reviewed honestly.
A range is only useful if crossing it changes what should be done and improves an outcome. Narrower targets that are not tied to outcomes generate treatment without benefit, which is the core of the disagreement.
Evidence
Where this information comes from
Every figure on this page is taken from the sources below. All of them are free to read, so you can check them yourself.
This page is general medical information and does not replace a personal consultation. Trial results are averages across large groups, not a prediction for any one person.