Biohacking

Dave Asprey & Bryan Johnson: What Works

Critical analysis of Asprey and Johnson's longevity protocols. What has scientific backing and what's marketing. Science vs hype.

by 11 min read
Dave Asprey & Bryan Johnson: What Works

Dave Asprey and Bryan Johnson: What to Copy and What to Avoid

Dave Asprey invented Bulletproof coffee and branded himself as the 'father of biohacking'. Bryan Johnson spends $2 million annually attempting to reverse his biological age. Both are the most recognisable names in the human optimisation movement, but amongst their protocols lies solid science, aggressive marketing and some questionable practices.

The biohacking industry moves billions and these two are its most visible faces. The problem: they separate evidence from spectacle so effectively that millions copy rituals without knowing which actually work.

In this critical analysis you'll discover which aspects of their protocols have scientific backing, which practices are unnecessary or expensive, and how to adapt what's useful to your life without spending a fortune or becoming a walking experiment.

::pull-quote{text='Effective biohacking doesn't require a millionaire's budget or turning your life into a laboratory' source='Longevitalis Principle'} ::

What You Need to Know

  • Dave Asprey popularised valid concepts (intermittent fasting, ketosis, mitochondrial optimisation) but mixed them with proprietary products lacking equivalent evidence
  • Bryan Johnson represents obsessive extremism: his Blueprint protocol has backed components but the whole is impractical and probably unnecessary for 99% of people
  • Copyable with evidence: 16/8 fasting, strength exercise, sleep optimisation, basic magnesium and vitamin D supplementation
  • Worth avoiding: expensive proprietary supplements, extreme practices without long-term studies, obsession with metrics that generates more anxiety than health
  • The key question isn't 'what do they take' but 'what minimum effective protocol produces 80% of results with 20% of effort'

Who Asprey and Johnson Really Are

Dave Asprey is a US entrepreneur who transformed his own physical transformation (lost 45 kg, reportedly) into a commercial empire. He created Bulletproof 360, a brand selling everything from coffee to targeted food supplements, plus neurofeedback devices.

His major contribution was popularising biohacking as a term and making longevity concepts accessible that previously lived in academic papers. His major problem: mixing real science with proprietary products that don't always have the same evidence level.

Bryan Johnson is the founder of Braintree (sold to PayPal) who dedicated his fortune to 'Project Blueprint': an extremely measured protocol to reverse his biological age. He publishes all his data openly, which is admirable, but his protocol includes 100+ daily supplements, experimental therapies and a level of control bordering on obsessive-compulsive disorder.

::stat-highlight{value='100+' label='Daily supplements in Johnson's protocol'} ::

Interestingly: Johnson is transparent with data and costs. Problematically: he presents his N=1 case as if it were replicable and desirable for everyone.

Dave Asprey's Bulletproof Protocol: What Works

Asprey built his brand on several pillars. Let's analyse each:

Coffee with Butter (Bulletproof Coffee)

The concept: coffee with grass-fed butter and MCT oil for sustained energy and morning ketosis.

The science: medium-chain triglycerides (MCT) metabolise rapidly and can elevate ketones even without deep ketosis. A study in Physiology & Behaviour showed MCT increases satiety and energy expenditure compared to long-chain fats.

Practical reality: works as a 'soft' intermittent fasting tool (technically breaks the fast but maintains low insulin). You don't need the Bulletproof brand or £40/kg butter. Regular grass-fed butter + generic MCT oil produce the same effect.

Intermittent Fasting and Cyclic Ketosis

Asprey promoted the 16/8 protocol and cycling in and out of ketosis weekly.

He's entirely correct here. Intermittent fasting has hundreds of studies showing benefits in insulin sensitivity, autophagy and inflammatory markers. Cyclic ketosis avoids metabolic adaptation from permanent ketosis.

Meta-analyses in Obesity Reviews confirm 16/8 protocols improve body composition and metabolic markers without requiring extreme caloric restriction.

Mitochondrial Supplementation

Asprey emphasises PQQ, CoQ10, glutathione and other mitochondrial nutrients.

Mixed evidence: CoQ10 has solid studies in cardiovascular health and energy production. PQQ has less robust human evidence (many in vitro or rodent studies).

Oral glutathione has bioavailability problems; precursors like N-acetylcysteine work better.

Bryan Johnson's Blueprint Protocol: Critical Dissection

Johnson publishes monthly metrics: epigenetic age, VO2 max, ageing velocity (per DunedinPACE), sleep quality, nocturnal erectile function, retinal thickness... The measurement level is impressive but also absurd for most people.

What Makes Scientific Sense

Structured exercise: Johnson does strength training 3x/week + variable intensity cardio. Meta-analyses in Cell Metabolism confirm the strength + HIIT combination is superior for longevity than either alone.

Sleep optimisation: sleeps 8+ hours with strict protocol (early dinner, red light, controlled temperature). Sleep quality is perhaps the longevity factor with most evidence after diet and exercise.

Controlled caloric restriction: consumes ~2,250 kcal daily with macro tracking. Caloric restriction without malnutrition is the only intervention extending lifespan across all studied organisms, though long-term human data is limited.

What's Questionable or Excessive

100+ daily supplements: includes everything from metformin (off-label, without diabetes) to experimental peptides. No study validates the interaction of so many compounds simultaneously. The hepatic and renal load of processing 100+ substances daily is unknown.

Johnson Protocol100+ supplements
Evidence-backed protocol5-8 key items

Gene therapy and transfusions: Johnson tried experimental gene therapy and young plasma transfusions. Studies in Nature show young blood transfusions improve cognition in mice, but in humans the AMBAR clinical trial was disappointing. This is very preliminary science, potentially dangerous.

Obsessive measurement: tracking nocturnal erectile function daily, corneal thickness monthly, etc. generates data but also anxiety and loss of social flexibility (Johnson skips family events for his protocol). Health psychology studies show metric obsession can be counterproductive.

What to Copy: The 80/20 Evidence-Based Protocol

If you remove the noise, marketing and extremism, these are the elements from both protocols with solid backing:

1. Intermittent Fasting 16/8

Start eating at 12:00, finish by 20:00. Enables nocturnal autophagy, improves insulin sensitivity, reduces inflammation. Hundreds of studies, low risk, zero cost.

2. Strength Exercise 2-3x/week

Strength preserves muscle mass (number #1 longevity predictor) and bone density. You don't need a fancy gym: kettlebells, bands, bodyweight work.

3. Sleep Optimisation

Dine 3 hours before bed, no screens 1 hour before, dark and cool room (18-20°C). Magnesium glycinate supports muscle relaxation and sleep transition.

1
Early dinner (3h before)
2
Wind-down protocol 1h before
3
Dark and cool room
4
Support supplementation (magnesium)

4. Basic Supplementation with Evidence

  • Vitamin D: 2,000-4,000 IU daily (deficient in 80% of Spanish population per La Paz Hospital studies)
  • Magnesium: 300-400mg, preferably glycinate for bioavailability
  • Omega-3 EPA/DHA: 1-2g daily from purified sources (without heavy metals)
  • Creatine: 5g daily improves cognitive and muscular function (one of the most studied supplements)

These four have hundreds of studies, are safe, affordable and address common deficiencies.

5. Early Morning Sunlight Exposure

10-15 minutes of natural light within 2 hours of waking synchronises circadian rhythm. Studies in Journal of Clinical Sleep Medicine show improvements in sleep latency and REM depth.

What to Avoid: Extreme Biohacking Traps

Massive Supplementation Without Personalisation

Taking 50+ supplements 'just in case' is expensive, stressful and potentially harmful. Most people need to correct 3-5 deficiencies, not take the entire catalogue.

Experimental Therapies Without Long-term Data

Peptides, gene therapies, intravenous NAD+... may have promising futures but today they're experiments with unknown risks. 20-year safety studies don't exist.

Expensive Proprietary Products with Exaggerated Claims

If a product claims 'triple your energy' or 'reverse 10 years' without PubMed-published studies, it's marketing. Seek generic active ingredients with evidence, not 'secret' formulas.

Obsession with Vanity Metrics

Measuring 40 biomarkers weekly can generate more anxiety than useful information. Basics done well matter more than advanced metrics done perfectly: better sleep 8 hours nightly than track REM phases with 6 hours sleep.

80%
Longevity results come from basics well executed

How to Choose an Integral Science-Backed Protocol

The reality of biohacking in the UK is that most of us lack millionaire budgets or time managing 100 supplements.

The key is simple protocols, clinical doses and formulations that work together. It's not about taking everything but taking what's right at the right time.

At Longevitalis we've developed 3 complementary products with only solid-evidence ingredients:

  • LongeviNocturno for nocturnal optimisation: magnesium glycinate + glycine + apigenin in clinical doses. Supports deep sleep without dependence
  • Vitalis Renova+ for morning cellular renewal: NMN + resveratrol + quercetin. Activate NAD+ pathways and sirtuins with studies showing energy improvements
  • LongeviSkin for skin from within: hydrolysed type I collagen + hyaluronic acid + vitamin C. Studies in Skin Pharmacology and Physiology show elasticity and hydration improvements

All formulated in Spain under GMP certification, with doses matching those in studies, without unnecessary fillers or excipients.

What matters: you don't need 100 supplements. You need 3-5 well-chosen ones covering sleep, cellular renewal and structure. The rest comes from diet, exercise and habits.

Side Effects and Precautions

Copying extreme protocols without medical supervision can cause:

Hepatic and renal overload: processing dozens of supplements simultaneously stresses liver and kidneys, especially with pre-existing conditions.

Drug interactions: many supplements (magnesium, omega-3, NAD+ boosters) interact with blood pressure, anticoagulant, diabetes medications.

Deficiencies from imbalance: excessive one mineral can block another's absorption (e.g. excess zinc reduces copper).

Metric anxiety: obsession with numbers can generate more stress (chronic cortisol) than benefit.

Misinterpreted placebo: initial improvement may stem from attention and expectation, not the specific protocol.

If considering advanced protocols, blood tests every 3-6 months are essential to verify you're not creating problems.

Frequently Asked Questions

Do I need to spend thousands monthly like Johnson to see results?

No. Longitudinal studies show 80% of longevity results come from: regular exercise, quality sleep, anti-inflammatory diet, social connections and stress management. That costs little or nothing. Basic supplementation (vitamin D, magnesium, omega-3) runs £25-40/month.

Is Bulletproof coffee really superior to regular coffee?

Coffee has beneficial polyphenols regardless of brand. Adding MCT fat produces mild ketosis and satiety, but you don't need Bulletproof. Quality coffee + generic MCT oil + regular grass-fed butter produce the same effect for a third the price.

Should I take metformin off-label like Johnson if I don't have diabetes?

Metformin has promising longevity studies (TAME trial ongoing) but also side effects (B12 deficiency, GI upset). No medical consensus exists for preventive use in healthy people. Consult an endocrinologist if interested; never self-prescribe.

Are epigenetic age tests (DunedinPACE, Horvath) reliable?

They're promising research tools with limitations. They vary by lab, time of day, recent stress. Useful for long-term trends, not monthly decisions. A meta-analysis in Aging Cell showed different epigenetic clocks can give contradictory results in the same person.

How long until you see real results?

Subjective improvements (energy, sleep): 2-4 weeks. Biomarker changes (glucose, lipids, inflammation): 3-6 months. Structural changes (muscle, bone density): 6-12 months. Actual longevity effects: decades (why we need long-term study evidence, not 2-year N=1 cases).

Is it safe combining intermittent fasting with intense exercise?

Yes, but requires adaptation. Start fasting on rest days or with light exercise. Once adapted (2-4 weeks), your body uses fat efficiently whilst fasting. Endurance athlete studies show performance can maintain or improve post-adaptation. Hydration and electrolytes are critical.

Conclusion: Sensible Biohacking Exists

Dave Asprey and Bryan Johnson have done a service popularising longevity and optimisation concepts. But their value lies in diffusing ideas, not copying their protocols verbatim.

What works per evidence: moderate intermittent fasting, strength exercise, sleep optimisation, basic supplementation for common deficiencies, early morning sunlight, anti-inflammatory diet.

What's unnecessary or premature: 100 simultaneous supplements, experimental therapies without long-term studies, metric obsession, proprietary products with exaggerated claims.

The ideal protocol is one you can maintain for decades, not one requiring superhuman discipline for 6 months. Longevity is a marathon, not a sprint.

Start with science-backed basics, measure subjective results (energy, sleep, recovery) and objective ones (annual tests), adjust per individual response. That's real biohacking.

If you want a structured starting point, the Longevitalis protocol covers three highest-evidence pillars: restorative sleep, cellular renewal and structure (skin, joints). Everything else is noise.


Disclaimer: This information is educational and doesn't replace professional medical advice. Consult your doctor before starting any protocol, especially if taking medication or with pre-existing conditions. Food supplements should not replace a balanced diet and healthy lifestyle.

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