Dave Asprey vs Tim Ferriss
Compare Dave Asprey's protocol (Biohacker & Bulletproof Founder) with Tim Ferriss's approach (Author & Self-Experimenter). Asprey emphasizes biohacking and cognitive performance, while Ferriss focuses on self experimentation and diet. Both recommend Vitamin D3 (5000 IU), Magnesium (Threonate/Glycinate).

Dave Asprey
Biohacker & Bulletproof Founder
A biohacking-focused protocol combining bulletproof coffee, intermittent fasting, targeted supplementation, and technology-assisted health optimization for cognitive performance and longevity.
14 products in protocol

Tim Ferriss
Author & Self-Experimenter
A self-experimentation-driven protocol focused on minimum effective dose interventions, the slow-carb diet, cold exposure, and systematic tracking of health biomarkers.
11 products in protocol
Side-by-Side Comparison
| Category | Dave Asprey | Tim Ferriss |
|---|---|---|
| Title | Biohacker & Bulletproof Founder | Author & Self-Experimenter |
| Focus Areas | biohackingcognitive performancesupplementsfasting | self experimentationdietsupplementsoptimization |
| Total Products | 4 | 5 |
| Shared Products | 2 products in common | |
| Protocol | A biohacking-focused protocol combining bulletproof coffee, intermittent fasting, targeted supplementation, and technology-assisted health optimization for cognitive performance and longevity. | A self-experimentation-driven protocol focused on minimum effective dose interventions, the slow-carb diet, cold exposure, and systematic tracking of health biomarkers. |
What They Agree On
Both Dave Asprey and Tim Ferriss include these 2 products in their protocols — a signal of strong evidence and broad expert consensus.
Vitamin D3 (5000 IU)
High-potency vitamin D3 supplement providing 5000 IU per serving to support optimal blood levels. Essential for immune function, bone health, and mood regulation. One of the most widely recommended supplements among longevity researchers due to widespread deficiency.
Vitamin D3 (5000 IU)
supplements
Magnesium (Threonate/Glycinate)
Highly bioavailable magnesium in threonate or glycinate form for superior absorption. Supports deep sleep quality, cognitive function, and nervous system relaxation. Magnesium threonate is particularly valued for its ability to cross the blood-brain barrier.
Magnesium (Threonate/Glycinate)
supplements
Where They Differ
These products are unique to one protocol — reflecting each expert's distinct philosophy, research focus, and priorities.

Only in Dave Asprey's Protocol
Extra Virgin Olive Oil
Cold-pressed extra virgin olive oil, a cornerstone of Mediterranean and longevity diets. Rich in polyphenols and oleic acid.
Collagen Peptides
Hydrolyzed collagen peptides that support skin elasticity, joint health, and connective tissue repair. Easily dissolved in hot or cold liquids for convenient daily supplementation.

Only in Tim Ferriss's Protocol
Omega-3 Fish Oil (High EPA)
High-potency omega-3 fish oil supplement with elevated EPA content. Supports cardiovascular health, reduces systemic inflammation, and promotes healthy brain function and mood regulation.
Green Tea (Matcha)
High-quality matcha green tea powder rich in EGCG catechins and L-theanine. Provides calm, sustained energy while delivering powerful antioxidant and anti-inflammatory benefits. Regular green tea consumption is associated with reduced cardiovascular disease risk and improved metabolic health in population studies.
Fermented Foods (Kimchi, Sauerkraut, Kefir)
Naturally fermented foods rich in live beneficial bacteria to support gut microbiome diversity. Regular consumption of kimchi, sauerkraut, and kefir has been shown to reduce markers of systemic inflammation. A Stanford study found fermented foods increased microbial diversity more effectively than a high-fiber diet.
Product Comparison
| Product | Dave Asprey | Tim Ferriss |
|---|---|---|
| Vitamin D3 (5000 IU) | Recommended | Recommended |
| Magnesium (Threonate/Glycinate) | Recommended | Recommended |
| Extra Virgin Olive Oil | Recommended | --- |
| Collagen Peptides | Recommended | --- |
| Omega-3 Fish Oil (High EPA) | --- | Recommended |
| Green Tea (Matcha) | --- | Recommended |
| Fermented Foods (Kimchi, Sauerkraut, Kefir) | --- | Recommended |
Frequently Asked Questions
What is the difference between Dave Asprey's and Tim Ferriss's protocols?
Compare Dave Asprey's protocol (Biohacker & Bulletproof Founder) with Tim Ferriss's approach (Author & Self-Experimenter). Asprey emphasizes biohacking and cognitive performance, while Ferriss focuses on self experimentation and diet. Both recommend Vitamin D3 (5000 IU), Magnesium (Threonate/Glycinate).
What do Dave Asprey and Tim Ferriss both recommend?
Both experts recommend Vitamin D3 (5000 IU), Magnesium (Threonate/Glycinate). These shared recommendations carry extra weight because they represent consensus across two independent, well-informed approaches to longevity.
Which protocol is better for beginners?
Both protocols can be adapted for beginners. Start with the fundamentals both experts agree on — Vitamin D3 (5000 IU), Magnesium (Threonate/Glycinate) — then gradually explore the unique elements of each protocol based on your specific health goals and budget.
All Products From Both Protocols
Vitamin D3 (5000 IU)
supplements
Magnesium (Threonate/Glycinate)
supplements
Extra Virgin Olive Oil
foods
Collagen Peptides
supplements
Omega-3 Fish Oil (High EPA)
supplements
Green Tea (Matcha)
foods
Fermented Foods (Kimchi, Sauerkraut, Kefir)
foods
Links may earn us a commission at no extra cost to you.
More Comparisons
Get Protocol Comparisons in Your Inbox
New comparisons, product reviews, and the latest longevity research — weekly.