List of Supplements David Sinclair Takes: The Complete 2025 Longevity Protocol

Comprehensive breakdown of the Harvard geneticist's science-backed supplement routine for cellular health, energy, and healthy aging

Harvard geneticist Dr. David Sinclair doesn't just research longevity—he actively experiments on himself with a daily supplement protocol refined over decades. His routine, centered on boosting cellular function and clearing damaged cells, has become a blueprint for health-conscious individuals seeking science-backed approaches to aging. From his groundbreaking work on sirtuins to his bestselling book Lifespan, the 55-year-old professor has transformed how we think about cellular health and vitality. Whether you're exploring cellular energy support or curious about evidence-based longevity strategies, this comprehensive guide covers the exact supplements Sinclair takes and why.

Key Takeaways

• You're witnessing a longevity revolution – From Sinclair's early resveratrol research in 2003 to today's cellular protocols, the supplement landscape has transformed from speculation to science-backed interventions with human trial data

• Cellular support forms the foundation – Sinclair takes NMN (1 gram daily) alongside resveratrol to activate sirtuin pathways for DNA protection and cellular repair

• The protocol keeps evolving – Recent additions include taurine (showing 10-12% lifespan extension in mice) and fish oil, while quercetin status remains uncertain as of 2024-2025

• Prescription drugs require medical supervision – Metformin, rapamycin, and statins form part of his protocol but demand doctor oversight, with rapamycin being one of few compounds proven to extend lifespan in multiple mammal models

• Personalization matters – Sinclair's family history of diabetes and cardiovascular disease drives his metformin and statin use, showing that optimal protocols depend on individual genetics and health status

Core Foundation: Sirtuin Activation

1. NMN (Nicotinamide Mononucleotide): The Cornerstone

NMN stands as the most critical supplement in Sinclair's protocol, with the Harvard professor taking 1,000 mg daily each morning mixed with yogurt. This precursor works by boosting cellular energy production and DNA repair mechanisms that decline with age.

Why NMN works:

• Supports cellular energy production and metabolic function

• Addresses fundamental aging drivers related to cellular decline

• A 2022 human trial showed NMN increased NAD+/NADH levels by 38% and improved insulin resistance and physical-function outcomes in adults aged 40–65

Sinclair specifically chooses NMN based on his assessment of research, though clinical trials using 250-500mg have shown benefits. His higher 1-gram dose represents his personal risk-benefit calculation. The synergy between NMN and other supplements amplifies effects—when combined with resveratrol, NMN provides both fuel and activation for cellular renewal.

2. Resveratrol: Sinclair’s Core Polyphenol

While Sinclair's groundbreaking research focused on resveratrol—publishing studies in 2003 showing it could activate sirtuin proteins for DNA protection—he continues to take around 1,000 mg of resveratrol daily. This evolution reflects his commitment to optimizing bioavailability and effectiveness.

Resveratrol advantages:

• Better absorption and stability compared to resveratrol

• Activates SIRT1 pathways involved in cellular stress response

• Mimics calorie restriction's longevity benefits without actually restricting calories

Sinclair takes his resveratrol powder mixed with yogurt or olive oil, as the compound requires fat for proper absorption. Animal studies have shown similar compounds delay heart aging, improve memory, and protect brain function. For those interested in polyphenol support, resveratrol represents the next generation of sirtuin-activating compounds.

3. TMG (Trimethylglycine): Methylation Support

TMG, also known as betaine, serves as Sinclair's "insurance policy" at 500-1,000 mg daily. He explains: "I don't see any downside. It's not an expensive molecule, and the upside is preventing methyl depletion."

TMG's protective role:

• Acts as methyl donor, replenishing biochemical building blocks

• Supports cardiovascular health by lowering homocysteine levels

• Enhances liver function and may improve body composition

The science centers on methylation—a biochemical process where methyl groups attach to DNA and proteins, regulating gene expression and detoxification. TMG provides methyl support while offering standalone benefits for metabolic health.

Cellular Cleanup: Senolytic Compounds

4. Fisetin: Brain-Penetrating Senolytic

Fisetin has emerged as Sinclair's primary senolytic compound at 500 mg daily, designed to clear senescent "zombie cells" that accumulate with age and drive inflammation. This flavonoid crosses the blood-brain barrier more effectively than other senolytics.

Fisetin's mechanisms:

• Induces programmed cell death in senescent cells

• Alleviates cognitive dysfunction and protects kidney function in animal studies

• Activates sirtuin pathways for multi-functional benefits

Animal research demonstrates fisetin extends lifespan in mice while maintaining muscle strength. Unlike some protocols using high monthly doses, Sinclair opts for continuous daily supplementation. The compound also provides neuroprotective effects valuable for long-term cognitive health.

5. Quercetin: Status Uncertain

Quercetin's place in Sinclair's current protocol remains unclear as of 2024-2025. Previously a staple at around 500 mg, this senolytic flavonoid was notably absent from Sinclair's 2023 research presentations. The shift may stem from emerging concerns about potential pathway interference.

The evolution illustrates an important principle: even expert-designed stacks should adapt as new research emerges. Quercetin appears in numerous foods including onions, apples, and capers, leading some experts to suggest dietary intake may suffice for individuals under 60.

Essential Vitamins

6. Vitamin D3: Addressing Widespread Deficiency

Sinclair takes 4,000-5,000 IU daily of vitamin D3, substantially higher than government recommendations. This reflects growing consensus among longevity researchers that official guidelines fall short of optimal levels.

Key benefits:

• Crucial roles in bone health, immune function, and mood regulation

• Reduces mortality risk in older adults per meta-analyses

• Functions like a hormone with receptors in nearly every cell type

Sinclair takes D3 in the morning with food, optimizing absorption of this fat-soluble nutrient. He always pairs it with vitamin K2, creating synergy where K2 directs calcium to bones rather than allowing arterial calcification. For comprehensive nutritional support, vitamin D3 represents one of the highest-value interventions available.

7. Vitamin K2: The Calcium Director

Working with vitamin D3, Sinclair takes 180-360 mcg of vitamin K2 daily to ensure calcium ends up in bones rather than soft tissues. This partnership proves critical because D3 increases calcium absorption, but without K2, calcium can deposit in arteries.

K2 mechanisms:

• Activates proteins like osteocalcin that bind calcium

• Provides cardiovascular protection against arterial calcification

• Supports bone density and arterial flexibility

The MK-7 form offers superior bioavailability with longer half-life. This basic vitamin pair costs approximately $25-35 monthly while offering profound long-term benefits.

Anti-Inflammatory Support

8. Fish Oil (Omega-3: EPA & DHA)

Fish oil represents one of Sinclair's recent additions, first mentioned in 2023. While exact dosing isn't disclosed, longevity physicians typically recommend around 2g EPA plus 1.5g DHA daily for combating chronic inflammation.

Omega-3 benefits:

• EPA addresses inflammation throughout the body

• DHA concentrates in brain tissue supporting cognitive function

• May rescue cognitive decline in animal models

• Reduces triglycerides and supports cardiovascular health

Quality matters tremendously—third-party testing for mercury and contaminants proves essential. Sinclair takes fish oil with meals to enhance absorption and minimize aftertaste.

9. Spermidine: Autophagy Trigger

Spermidine appears in Sinclair's protocol at 1-2 mg daily, helping "mimic fasting effects, key to healthy aging." This polyamine triggers autophagy—the cellular cleanup process that breaks down damaged components.

Spermidine functions:

• Activates autophagy pathways for cellular recycling

• Shows increased median lifespan in animal studies

• Supports cardiovascular health and protects against neuroinflammation

• Natural dietary sources include wheat germ, aged cheese, mushrooms

Spermidine works synergistically with Sinclair's intermittent fasting practice, amplifying cellular renewal benefits.

10. Alpha Lipoic Acid: Mitochondrial Support

Alpha lipoic acid (ALA) holds special significance—it was Sinclair's PhD research focus. Recently reintroduced into his stack, ALA is often taken around 300 mg/day in studies; Sinclair hasn’t publicly shared his exact dose after a period of removal. ALA functions as a mitochondrial cofactor essential for energy production.

ALA benefits:

• Provides antioxidant protection against free radicals

• Helps regulate blood sugar and supports nerve cells

• Protects liver function and mitochondrial health

The compound's inclusion partly honors Sinclair's scientific mentor who took ALA into his 90s. Take on an empty stomach for optimal absorption.

Cutting-Edge Compounds

11. Taurine: The Paradoxical Longevity Molecule

Taurine represents Sinclair's most recent experimental addition, taking around 2 grams daily based on mouse studies showing 10-12% lifespan extension. This amino acid puzzles researchers because it provides longevity benefits despite activating mTOR—a pathway most anti-aging interventions seek to inhibit.

Taurine mechanisms:

• Supports mitochondrial health and reduces oxidative stress

• Improves cardiovascular function and exercise capacity

• Protects against heart damage and preserves cognitive function

Sinclair actively monitors blood markers while using taurine, treating this addition as ongoing experimentation rather than established protocol.

Prescription Medications

12. Metformin: Diabetes Drug for Longevity

Metformin, taken at 800-1,000 mg daily, represents Sinclair's most evidence-backed prescription intervention. His family history of diabetes drives this choice, though benefits extend beyond disease prevention.

Metformin's effects:

• Activates AMPK pathways mimicking caloric restriction

• Improves insulin sensitivity and reduces inflammation

• Diabetics taking metformin outlive healthy people not taking it

• Featured in TAME trial—first FDA study treating aging as medical condition

Important: Sinclair skips metformin on workout days, concerned about potential interference with exercise adaptations. Side effects can include digestive issues, while long-term use may lower B12 levels requiring monitoring.

13. Rapamycin: Powerful Lifespan Extender

Rapamycin stands as the most potent compound in Sinclair's arsenal—one of few proven to extend lifespan in mammal models; his exact dosing hasn’t been publicly confirmed. While exact dosing isn't disclosed, longevity physicians typically take around 6mg weekly rather than daily.

Rapamycin mechanisms:

• Inhibits mTOR pathway, triggering deep autophagy

• Mimics severe caloric restriction's cellular effects

• Shows significant lifespan extension across multiple species

• Benefits observed even when administration begins in middle age

As an immunosuppressant, rapamycin requires careful medical monitoring. Weekly rather than daily dosing appears to preserve longevity benefits while minimizing immune suppression. This requires physician oversight—unsuitable for casual supplementation.

14. Low-Dose Aspirin: Anti-Inflammatory

Sinclair takes around 83 mg aspirin daily, primarily for potential cancer risk reduction. However, evidence remains mixed—a 2018 study of approximately 20,000 participants found no cardiovascular benefit in healthy individuals.

Aspirin inhibits clotting, potentially causing bleeding episodes especially when combined with other blood thinners. Those considering aspirin should discuss bleeding risk with physicians, particularly if taking other medications.

15. Statin: Personal Necessity

Sinclair has taken statin medications since his 20s; his specific statin type and dosage have not been publicly disclosed due to extremely high cholesterol at age 29, driven by family cardiovascular disease history. This makes statins highly personal rather than universal recommendation.

Important considerations:

• Benefits depend heavily on individual genetics and baseline risk

• Statins deplete CoQ10—a critical mitochondrial compound

• Side effects including muscle aches affect some users

This prescription demands medical evaluation of individual risk profiles, lipid panels, and family history before consideration. For antioxidant support, consider compounds that don't require prescription oversight.

Building Your Personalized Wellness Foundation with XV1

Sinclair's 15-supplement protocol represents decades of refinement based on cutting-edge research and personal experimentation. While his approach provides valuable insights into longevity science, the complexity and cost may seem overwhelming for those beginning their wellness journey. This is where Complete Wellness through accessible, science-backed supplementation becomes essential.

XV1 was founded on the principle that optimal health shouldn't require complicated protocols or expert-level knowledge. Our product line focuses on foundational wellness—the essential nutrients, antioxidants, and cellular support compounds that benefit nearly everyone, regardless of genetic background or health status. Rather than chasing experimental compounds requiring medical supervision, Complete Wellness starts with filling nutritional gaps that affect the majority of adults.

Consider XV1 Green Superfood Powder as your nutritional insurance policy. This organic blend delivers B-vitamins, vitamin C, detoxifying greens, probiotics, and antioxidants in one daily scoop—vegan, GMO-free, with no sugar or fillers. While Sinclair uses individual vitamin supplements, a comprehensive greens formula provides broader micronutrient coverage plus digestive support through probiotics. The powder works seamlessly with any dietary approach—keto, paleo, vegan, or intermittent fasting—making it adaptable to your lifestyle rather than demanding lifestyle changes.

For those focused on cellular protection and detoxification, XV1 Glutathione Complex provides the body's master antioxidant in a highly bioavailable liposomal form. Glutathione supports liver detoxification, reduces oxidative stress, and protects cellular components from damage—functions that complement Sinclair's emphasis on cellular health without requiring exotic compounds. Each serving delivers 500mg of Setria® L-Glutathione, the reduced form your body can use immediately, enhanced with milk thistle and alpha lipoic acid for comprehensive liver and cellular support.

Performance and recovery matter whether you're an elite athlete or simply want to maintain strength and mobility as you age. XV1 Creatine Gummies make one of the most researched performance supplements effortless—1,000mg creatine monohydrate per gummy in a vegan, gluten-free format naturally flavored with real fruit. No measuring, no mixing, no gritty texture. Creatine supports muscle strength, cognitive function, and cellular energy production with decades of safety data, making it suitable for adults of all ages focused on maintaining physical and mental performance.

Joint health and connective tissue support become increasingly important for active lifestyles and longevity. XV1 Liquid Collagen delivers hydrolyzed Type I and III collagen peptides, hyaluronic acid, biotin, and zinc in a fast-absorbing sugar-free liquid. Just one tablespoon daily supports joints, skin elasticity, hair strength, and nail health. The liquid format ensures superior absorption compared to pills or powders, with results many users notice within 4-6 weeks of consistent use. Non-GMO, dairy-free, and gluten-free, it fits seamlessly into morning routines without requiring meal timing considerations.

Complete Wellness means addressing all foundational health pillars, which is why XV1 Multivitamin provides comprehensive micronutrient coverage in forms your body actually absorbs. Rather than synthetic vitamins at mega-doses, our formula uses methylated B-vitamins, chelated minerals, and evidence-based amounts of each nutrient. This covers potential gaps from even excellent diets, providing insurance against deficiencies that could limit cellular function, energy production, or immune response.

What distinguishes XV1's approach from complex longevity protocols is our emphasis on consistency over complexity. Sinclair's regimen requires significant financial investment (estimated $200-400 monthly for supplements alone plus prescription costs), extensive research to understand interactions and timing, and willingness to experiment with compounds that lack long-term human safety data.

Complete Wellness through XV1 prioritizes:

Accessibility – Products designed for daily use without complicated dosing schedules or meal timing requirements

Transparency – Clear labeling with no proprietary blends, third-party testing, and straightforward ingredient lists

Foundational impact – Focusing on nutrients and compounds with robust human research rather than experimental interventions

Affordability – Subscription flexibility with options to edit, skip, or cancel anytime, making consistent wellness financially sustainable

The science behind longevity continues evolving, with new compounds and protocols emerging regularly. Sinclair's willingness to adapt his stack—removing quercetin, reintroducing alpha lipoic acid, adding taurine—demonstrates that even experts refine their approaches as evidence develops. For most individuals, however, perfecting the basics delivers more meaningful health improvements than chasing cutting-edge compounds.

Start with comprehensive nutrition through greens and multivitamins. Add cellular protection via glutathione. Support physical performance and recovery with creatine. Maintain connective tissue health through collagen. This foundation addresses the most common deficiencies and cellular stressors affecting adults, regardless of genetic background. From this solid base, you can explore additional targeted support based on personal health goals, family history, and biological response.

Every XV1 product comes with a 90-Day Money Back Guarantee because Complete Wellness requires finding what works for your unique biology. Unlike prescription protocols requiring medical oversight, our formulas provide accessible entry points to science-backed supplementation. Whether you're beginning your wellness journey or optimizing an existing routine, XV1 makes foundational health straightforward, sustainable, and effective.

Frequently Asked Questions

What is David Sinclair's complete supplement list for 2025?

Sinclair's current protocol includes NMN (1g), resveratrol (1g), TMG (500-1,000mg), fisetin (500mg), vitamins D3 (4,000-5,000 IU) and K2 (180-360mcg), fish oil, spermidine (1-2mg), alpha lipoic acid (around 300mg), and taurine (around 2g). Prescription medications include metformin (800-1,000mg), rapamycin (weekly), low-dose aspirin (83mg), and a statin. Quercetin's status remains uncertain as of 2024-2025.

What does David Sinclair say is the most important supplement?

Sinclair positions NMN as his most critical supplement, taking 1 gram daily. He emphasizes it works synergistically with resveratrole—resveratrol acts as "the accelerator pedal for sirtuin genes" while NMN provides cellular fuel. The combination addresses cellular decline mechanisms he considers fundamental to aging.

Did David Sinclair stop taking any supplements recently?

Quercetin's status became uncertain after Sinclair didn't mention it at his 2023 research summit, possibly due to concerns about pathway interference. Alpha lipoic acid was removed then reintroduced, showing his protocol evolves based on emerging research and personal response.

Does David Sinclair's protocol require prescription medications?

Four items require prescriptions: metformin, rapamycin, statins, and aspirin (above certain doses). He emphasizes these demands for medical supervision, particularly rapamycin which functions as an immunosuppressant. His metformin use stems from family diabetes history, while statins address genetic high cholesterol—making them personalized rather than universal recommendations.

How much does David Sinclair's supplement protocol cost monthly?

The over-the-counter supplements cost approximately $200-400 monthly depending on brands chosen. Prescription medications add an estimated $20-100 depending on insurance coverage. Budget-conscious approaches might start with core supplements plus vitamins D3/K2, totaling around $100-150 monthly before exploring advanced compounds.