Can Dave Asprey's Bulletproof and biohacking protocols dramatically extend lifespan toward his goal of living to 180?
Claim attributed to Dave Asprey, founder of Bulletproof and self-described "father of biohacking" , Asprey says his goal is to live "at least 180," reports spending $1 to 2 million on biohacking, and sells the protocols, supplements, and devices in question through his own brands (Bulletproof, Upgrade Labs, True Dark; roughly eight companies). That is a direct commercial conflict.
No intervention of any kind has been shown to raise maximum human lifespan, and the oldest reliably documented person reached about 122 years. The "180" target is aspiration sold as a plan, and a daily butter-rich coffee works against cardiovascular longevity for many people.
It raises ketones and a marketer's profile; it says nothing about whether a human lives longer, and the signature butter coffee pushes LDL the wrong way.
What it’s supposed to target
- Mitochondrial energy
- Ketones (MCT oil / BHB)
- Bulletproof Coffee
- “Live to 180” goal
Dave Asprey's biohacking premise is that you can engineer your biology like a system: blunt inflammation, feed the mitochondria, and steady energy by running partly on ketones. Bulletproof Coffee (coffee blended with butter and MCT oil) is the flagship, meant to deliver a clean, fasting-friendly fuel; layered on top are supplements, devices, and tracking aimed at “upgrading” the body, with the stated end goal of living to at least 180.
Some of the scaffolding is reasonable: MCT oil does raise ketones, and Asprey helped popularize habits with independent merit (sleep tracking, attention to diet, intermittent fasting). But the headline does not survive contact with evidence. There is no proven intervention that extends maximum human lifespan, so “live to 180” is aspiration, not data. Bulletproof Coffee's daily saturated fat can raise LDL cholesterol in many people, the opposite of heart-healthy, and Asprey sells a large branded supplement and product line, a strong incentive to overstate. Popularizing real ideas is not the same as proving the extreme claim.
Mechanism is theory, not proof. A plausible pathway explains why something might work, not whether it does. The verdict rests on the evidence below, not the elegance of the theory.
What would have to be true
Some intervention would have to raise maximum human lifespan well past the documented ceiling of about 122 years (no evidence; link fails).
The specific Bulletproof protocol would need long-term, hard-endpoint trials showing lower mortality (none exist; link fails).
A daily butter load would have to help, not harm, cardiovascular risk (RCTs show it raises LDL; link fails).
What the evidence actually shows
The headline goal has no evidence, and the lipid effect cuts the wrong way
No intervention has been shown to extend maximum human lifespan, and the longest reliably verified life was about 122 years, so a target of 180 rests on extrapolation, not data. Meanwhile Bulletproof Coffee delivers a large daily dose of saturated fat from butter. A double-blind crossover RCT (Engel and Tholstrup, n=47) found butter significantly raised total and LDL cholesterol versus olive oil, and a 3-arm RCT (Khaw 2018, n=94) found butter raised LDL by +0.38 mmol/L versus olive oil. A Cochrane review of 15 RCTs (56,675 participants) found cutting saturated fat reduced cardiovascular events by 17% (RR 0.83, 95% CI 0.70 to 0.98), greatest when replaced by polyunsaturated fat, with little effect on all-cause mortality on this timescale.
What is real is modest, sold by the seller, and not about lifespan
The checkable wins are narrow. MCT oil raises blood ketones: an RCT (Harvey 2018, n=28, 20 days) found consistently higher BOHB, though the faster time to ketosis failed to reach significance and ketone elevation has never been linked to longer life. Practices Asprey helped popularize, including intermittent fasting and attention to sleep and diet quality, have independent merit, but popularizing real ideas does not validate the extreme claim or the branded products. The same person who sells Bulletproof, Upgrade Labs, and True Dark is the source of the promise, so modest, real effects get bundled with an unprovable outcome.
Studies, graded, and who paid
No proven intervention raises maximum human lifespan; longest verified life is about 122 years. Untested and unsupported.
Real and replicated; an RCT found higher BOHB, though faster time-to-ketosis did not reach significance and no lifespan link exists.
Butter raises LDL versus olive oil in RCTs; cutting saturated fat lowers cardiovascular events. The habit cuts the wrong way.
| # | Study | Type | Size | Funding / COI | Key limitations |
|---|---|---|---|---|---|
| 2 | Cochrane: reducing saturated fat for cardiovascular disease | Systematic review & meta-analysis of RCTs | 15 RCTs, 56,675 participants | Independent Cochrane review; NIHR/academic support, no industry sponsor of the analysis. | Cardiovascular events fell 17%; little effect on all-cause mortality on this timescale. |
| 3 | Engel & Tholstrup: butter vs olive oil on blood lipids | Randomized double-blind crossover RCT | n=47 | Mixed University of Copenhagen; dossier notes partial dairy-sector support, unverified on the cited page, yet result was unfavorable to butter. | Short (about 5-week periods); measures LDL, not clinical outcomes; butter also raised HDL. |
| 4 | Harvey 2018: MCT and time to nutritional ketosis | Randomized double-blind placebo-controlled trial | n=28 (23 completed) | Independent Human Potential Centre, AUT University; no-conflict declaration not visible on cited abstract. | 20 days; faster time-to-ketosis not significant; ketone biomarker only, no lifespan endpoint. |
| 5 | Khaw 2018: coconut oil vs butter vs olive oil | Randomized controlled trial (3-arm) | n=94 | Independent Investigator-led, Cambridge; NIHR/MRC support, no commercial product sponsor. | 4 weeks; LDL endpoint, not clinical outcomes or lifespan. |
Mainstream nutrition bodies hold that high saturated-fat intake raises LDL and that cutting or replacing it lowers cardiovascular-event risk, which weighs against a daily butter-rich coffee.
Unproven ≠ disproven
The lifespan promise is not merely untested, it is untestable on its face; a 'live to 180' claim cannot be verified until well beyond any documented human life, so it sits permanently in the unfalsifiable zone.
Where claim and evidence diverge
No long-term, independent randomized trial of the integrated Bulletproof/biohacking protocol on mortality or lifespan exists; the verdict is assembled from evidence on the individual components.
The money trail
Asprey founded and profits from Bulletproof (coffee, MCT/Brain Octane oil, supplements), the exact products implicated in the saturated-fat and MCT claims.
He leads further ventures (Upgrade Labs, True Dark, roughly eight companies) and reports spending $1 to 2 million on the personal biohacking he then markets; the independent evidence here carries no such commercial tie.
The honest read
Real but modest effects (ketones up, fasting's genuine appeal) are being marketed by a seller with a large conflict as a path to radical life extension the evidence does not support, while the signature butter habit works against cardiovascular longevity for many.
What would change this verdict
A long-term, independent randomized trial showing the integrated protocol lowers mortality or extends lifespan.
Credible, verified evidence that any intervention raises maximum human lifespan beyond the roughly 122-year ceiling.
Sources
- Hammer A (SF Standard). 'Father of Biohacking' and Founder of Bulletproof Coffee Wants You To Embrace Laziness. Jan 29, 2023. (Asprey: 'At least 180. Our current best is 120'; eight companies, True Dark, fasting.)
- Hooper L, et al. Reduction in saturated fat intake for cardiovascular disease. Cochrane Database Syst Rev 2020, Issue 8, CD011737. (15 RCTs, 56,675 participants; CV events RR 0.83, 95% CI 0.70 to 0.98.)
- Engel S, Tholstrup T. Butter increased total and LDL cholesterol compared with olive oil. Am J Clin Nutr. 2015;102(2):309-315. PMID 26135349.
- Harvey CJdC, et al. The Effect of Medium Chain Triglycerides on Time to Nutritional Ketosis. J Nutr Metab. 2018;2018:2630565. PMID 29951312.
- Khaw KT, et al. Randomised trial of coconut oil, olive oil or butter on blood lipids. BMJ Open. 2018;8(3):e020167. PMC5855206.
People also ask
- Can biohacking help you live to 180?
- No intervention has ever been shown to extend human maximum lifespan, and the oldest reliably documented person reached about 122 years. A target of 180 is nearly 50% beyond any verified human life, an aspirational bet, not a finding.
- Is Bulletproof Coffee good for longevity?
- Probably not. Its daily butter raises LDL, a causal cardiovascular risk factor, in an independent randomized trial. So the signature practice plausibly works against longevity rather than supporting it.
- Do any of Dave Asprey's recommended habits actually work?
- Some have merit. Intermittent fasting, sleep tracking and diet quality have independent support. But that support does not validate the central claim that a protocol can extend lifespan toward 180.
Part of our guide: Longevity influencers and protocols, fact-checked
Caveat is journalism, not medical advice. We check public claims against published evidence; we don’t diagnose, treat, or tell you what to take.