A longevity protocol built only on what the evidence supports
There are thousands of supplements and routines marketed for longevity, but only a handful are actually backed by solid human research. This guide lays out a simple starting plan built only on what's proven to help.
Ordered by the strength of human evidence and the size of the effect, a longevity protocol is unglamorous: cardiorespiratory fitness, resistance training, sleep, blood pressure and metabolic control, then — a long way down — a short list of supplements. Almost every published protocol inverts this order, because the top of the list cannot be sold.
- VO₂max is among the strongest modifiable predictors of all-cause mortality. Nothing in a bottle competes with it.
- Muscle mass and strength predict independence and mortality in later life, and resistance training is the only reliable way to protect them.
- Blood pressure and ApoB are cheap to measure, treatable, and carry more outcome evidence than any longevity compound.
- Sleep is not a wellness accessory — short and disrupted sleep tracks with metabolic and cardiovascular risk.
- Supplements belong at the end. They are where the marketing is, not where the effect is.
The protocol, in order of evidence
Ranked on: the strength of human evidence and the size of the effect on mortality and function. Nothing here is ordered by cost, novelty or commercial value — which is why the expensive items are last.
| # | Option | Verdict | Grade |
|---|---|---|---|
| 1 | Cardiorespiratory fitness | Largest single effect | — |
| 2 | Resistance training | Protects the thing that fails first | — |
| 3 | Blood pressure and ApoB | Cheap to measure, treatable | — |
| 4 | Sleep | Underrated because it is free | — |
| 5 | Protein adequacy and body composition | Enables everything above | — |
| 6 | Creatine monohydrate | The one supplement that earns its place | — |
| 7 | Everything else in a bottle | Optional, at best | — |
- 01
Cardiorespiratory fitness
Largest single effectVO₂max is consistently among the strongest modifiable predictors of all-cause mortality in large cohorts, and the difference between the lowest fitness category and the next one up is where most of the benefit sits. Practically: zone 2 aerobic work most weeks, with some higher-intensity intervals. If you do one thing on this list, do this one.
Muscle mass and strength decline from midlife and predict independence, fall risk and mortality. Resistance training is the only reliable way to defend them, and it becomes more important with age rather than less. Two to three sessions a week covering the major movements is sufficient.
- 03
Blood pressure and ApoB
Cheap to measure, treatableBoth are modifiable, both have decades of outcome evidence, and both are frequently ignored by people spending thousands on longevity supplements. Measure them, and if they are elevated, treat them — usually with medication that has better evidence than anything else on this page.
- 04
Sleep
Underrated because it is freeShort and fragmented sleep tracks with metabolic dysfunction, cardiovascular risk and cognitive decline. Consistency of timing does more than any supplement marketed for sleep. If sleep is genuinely disordered, that is a clinical problem worth investigating rather than supplementing around.
Adequate protein supports the muscle that resistance training builds, and matters more with age as the anabolic response blunts. This is also where GLP-1 medications need care: substantial lean mass is lost alongside fat unless training and protein are deliberate.
- 06
Creatine monohydrate
The one supplement that earns its placeHundreds of human trials, consistent effects on strength and lean mass, growing cognitive data in older adults, and a cost of a few dollars a month. It supports the second item on this list, which is why it ranks above compounds with far better marketing.
NAD⁺ precursors, taurine, spermidine and the rest sit here — not because they are worthless, but because their human evidence covers biomarkers and short-term function rather than outcomes. Treat them as considered experiments once the items above are genuinely handled.
What this actually costs
The protocol, priced
| Item | Rough annual cost | Evidence strength |
|---|---|---|
| Aerobic and resistance training | Gym membership or nothing at all | Strongest on this list |
| Blood pressure monitoring | One home monitor, once | Very strong |
| ApoB and metabolic panel | Low — a standard blood test | Very strong |
| Sleep consistency | Free | Strong |
| Creatine monohydrate | A few dollars a month | Strong |
| NAD⁺ precursors and similar | Several hundred to several thousand | Promising, unproven |
| Longevity clinic programme | €2,000–35,000 | Depends entirely on whether you act on it |
Before you add anything to this
- Check interactions first. The most common real-world harm from a longevity routine is a supplement meeting a prescription, not a compound being ineffective.
- Match the dose to the trial. A product below the studied dose does not inherit the study's evidence, whatever the label cites.
- Change one thing at a time. A protocol assembled all at once cannot tell you which part worked.
- Decide in advance what would make you stop. An open-ended protocol with no exit condition is a subscription, not an experiment.
Frequently asked questions
What is the best longevity protocol?
The one you will actually follow, built on the items with the strongest human evidence: cardiorespiratory fitness, resistance training, blood pressure and metabolic control, and sleep. Every published protocol that leads with supplements has the order backwards relative to the evidence.
How many supplements should a longevity protocol include?
Fewer than most contain. Each addition multiplies interaction risk and cost while the evidence behind the marginal item usually weakens sharply. Creatine has a genuine case; beyond that, treat additions as experiments with a defined endpoint rather than permanent fixtures.
Do I need a longevity clinic to follow a protocol?
No. Everything in the first five positions here can be measured and acted on through ordinary primary care and a home blood pressure monitor. A clinic adds concentrated diagnostics and monitoring, which is valuable if you will act on the findings and expensive if you will not.
How long before a longevity protocol shows results?
Fitness and strength change measurably within weeks to months, and blood pressure and metabolic markers respond on a similar timescale. Anything claiming to demonstrate an effect on ageing itself over that period is measuring a surrogate marker — there is no short-term readout for a long-term outcome.
Keep reading
- Best longevity supplements, ranked by evidence
Where each compound sits, and why most rank lower than their marketing.
- Biological age tests: what they measure and miss
Before you buy testing, know what the number can and cannot tell you.
- Longevity clinics, verified
What the clinics measure, and which publish pricing.
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