Longevity Pathways have fascinated scientists and health enthusiasts alike for decades. These biological mechanisms determine how we age and, more importantly, how we might extend our healthspan. Understanding these pathways enables us to make informed choices about supplements and lifestyle changes that could potentially add years to our lives. ProVita Biotech, the leading longevity ingredient supplier with comprehensive OEM services, has pioneered research in this field.
When you explore longevity ingredients, you’ll find compounds like Resveratrol (CAS 501-36-0), a polyphenol derived from grapes and berries. This white crystalline powder (C14H12O3, molecular weight 228.24 g/mol) activates the SIRT1 pathway, mimicking the effects of caloric restriction without the hunger. Its bioavailability increases when consumed with fatty foods, potentially offering cardiovascular protection and DNA repair support.
Another powerful compound in the longevity arsenal is Nicotinamide Mononucleotide (NMN, CAS 1094-61-7), a direct NAD+ precursor that appears as a white powder with molecular formula C11H15N2O8P. Your cells use NMN to produce NAD+, a crucial coenzyme that declines with age, affecting energy production and cellular repair processes across multiple longevity pathways.
Sirtuin Activation (SIRT Pathway)
Sirtuins represent a powerful family of proteins that regulate cellular health and lifespan through their influence on metabolism, DNA repair, and stress response mechanisms. These enzymes work as cellular guardians that become increasingly important as we age.
How It Works: Role of Sirtuins in Cellular Metabolism, DNA Repair, and Stress Resistance
Sirtuins function as NAD+-dependent deacetylases that remove acetyl groups from proteins, thereby modifying their activity. There are seven known sirtuin proteins (SIRT1-7) in mammals, with SIRT1, SIRT3, and SIRT6 showing the strongest connections to longevity.
SIRT1 operates primarily in the nucleus, regulating genes involved in metabolism and stress resistance. When activated, it improves mitochondrial function and promotes fat metabolism.
SIRT3 works within mitochondria, enhancing energy production and reducing oxidative stress. This protection of mitochondrial integrity is crucial for cellular energy levels and overall aging processes.
SIRT6 plays a vital role in DNA repair and genome stability. Its activity helps prevent the accumulation of DNA damage that typically occurs with age.
Sirtuins require NAD+ as a cofactor, which explains why NAD+ levels strongly influence sirtuin activity. As we age, NAD+ naturally declines, reducing sirtuin function and accelerating aging processes.
Ingredients
NAD+ (Nicotinamide Adenine Dinucleotide) is the essential cofactor for all sirtuin activity. This coenzyme appears as a white to off-white powder with molecular formula C21H27N7O14P2 and weight of 663.4 g/mol. NAD Powder directly supports cellular energy production and enhances sirtuin function.
NMN (Nicotinamide Mononucleotide) serves as a direct precursor to NAD+. This white crystalline compound efficiently crosses cell membranes to boost NAD+ levels, particularly when NAD+ production naturally declines with age.
NMNH (Reduced Nicotinamide Mononucleotide) provides a more stable form of NMN with enhanced bioavailability. It effectively supports cellular repair and mitochondrial health through improved NAD+ conversion efficiency.
NR (Nicotinamide Riboside) offers another pathway to increase NAD+ levels. This vitamin B3 derivative bypasses certain metabolic bottlenecks, making it an efficient NAD+ precursor with excellent oral bioavailability.
Resveratrol, a polyphenol found in grapes and berries, activates SIRT1 directly. This white to off-white powder enhances sirtuin function even without increasing NAD+ levels.
Pterostilbene, structurally similar to resveratrol but with better bioavailability, provides more potent SIRT1 activation. This methylated stilbene compound crosses cell membranes more efficiently than resveratrol.
AMPK Activation (AMP-Activated Protein Kinase)
AMPK serves as a cellular energy sensor that regulates metabolism and promotes longevity. This master regulator responds to energy depletion by triggering metabolic shifts that enhance cellular resilience and extend lifespan.
How It Works: Importance in Energy Metabolism, Mitochondrial Health
AMPK activation occurs when cellular energy levels drop, causing AMP ratios to increase. This triggers a cascade of metabolic adjustments that improve energy efficiency and cellular health. When activated, AMPK inhibits energy-consuming anabolic processes like protein synthesis while stimulating catabolic pathways such as fatty acid oxidation.
The pathway’s significance extends to mitochondrial biogenesis and quality control. AMPK promotes the creation of new mitochondria while enhancing the removal of damaged ones through mitophagy. This maintenance of mitochondrial health is crucial for longevity.
AMPK also supports autophagy, the cellular “cleanup” process that removes damaged proteins and organelles. This function helps prevent the accumulation of cellular damage that contributes to aging.
Ingredients
Metformin is a prescription medication originally developed for type 2 diabetes. This white crystalline powder (C4H11N5) has a molecular weight of 129.17 g/mol and works primarily by activating AMPK. Metformin improves insulin sensitivity, reduces glucose production in the liver, and enhances mitochondrial function.
Berberine is a natural alkaloid (C20H18NO4+) with a molecular weight of 336.36 g/mol, found in plants like Berberis, Coptis chinensis, and Hydrastis canadensis. This yellow crystalline compound activates AMPK similarly to metformin but through slightly different mechanisms. Berberine’s bioavailability is generally low (less than 5%).
Dihydroberberine is a reduced form of berberine with significantly improved bioavailability. This modified compound offers similar AMPK activation benefits with potentially lower dosage requirements. Research suggests it may provide stronger metabolic benefits than standard berberine.
mTOR Inhibition
The mTOR pathway plays a crucial role in cellular metabolism and aging processes. By modulating this pathway, researchers have discovered promising methods to potentially extend lifespan and improve healthspan.
How It Works: Cell Growth Regulation and Lifespan Extension
The mTOR (mechanistic Target of Rapamycin) pathway acts as a central regulator of cell growth, proliferation, and metabolism. This pathway integrates signals from nutrients, growth factors, and energy status to control cellular processes.
When activated, mTOR promotes protein synthesis and cell growth while inhibiting autophagy—the cellular “cleanup” process that removes damaged components. Chronic mTOR activation can accelerate aging by increasing cellular stress and reducing cellular maintenance.
Inhibiting mTOR shifts cellular resources from growth to maintenance and repair. This metabolic switch activates autophagy, removes damaged cellular components, and enhances cellular resilience against stress.
Research in various organisms—from yeast to mammals—demonstrates that mTOR inhibition can extend lifespan by 20-30% in some cases. This intervention mimics aspects of caloric restriction, which is known to promote longevity.
Ingredients
Rapamycin (Sirolimus) is the most well-studied mTOR inhibitor. This white crystalline compound (C51H79NO13, molecular weight 914.2 g/mol) was first isolated from soil bacteria on Easter Island. It directly binds to FKBP12 protein, forming a complex that inhibits mTOR activity.
Rapamycin has shown lifespan extension in mice by 9-14% when administered in later life. Its bioavailability is approximately 14% when taken orally, with fat-soluble formulations improving absorption.
Rapalogs are synthetic derivatives of rapamycin designed for improved pharmacokinetics and reduced side effects. Examples include everolimus (Afinitor) and temsirolimus (Torisel), both approved for certain medical conditions.
Natural compounds with mTOR-inhibiting properties include resveratrol, curcumin, and quercetin. These polyphenols offer milder mTOR inhibition compared to rapamycin but may provide complementary benefits through multiple mechanisms.
Autophagy Induction
Autophagy serves as a crucial cellular recycling mechanism that removes damaged components and provides building blocks for cellular renewal. This process plays a fundamental role in maintaining cellular health and promoting longevity through efficient waste management.
How It Works: Cell Recycling for Maintaining Cellular Health
Autophagy, meaning “self-eating,” is your body’s natural method for clearing out damaged cells and components. This process begins when cells form double-membrane vesicles called autophagosomes around targeted cellular debris.
These autophagosomes then fuse with lysosomes, specialized organelles containing digestive enzymes. The fusion creates autolysosomes where cellular waste is broken down into basic building blocks.
Your cells can recycle these components to generate energy or build new cellular structures. This recycling mechanism becomes particularly important during periods of stress or nutrient deprivation.
Autophagy serves multiple protective functions, including removing protein aggregates, damaged mitochondria, and pathogens. When functioning optimally, this process helps defend against neurodegenerative diseases, infections, and cancer.
The regulation of autophagy involves complex signaling pathways. Key regulators include mTOR (mechanistic target of rapamycin), which inhibits autophagy when nutrients are abundant, and AMPK (AMP-activated protein kinase), which activates it during energy deficiency.
Ingredients
Urolithin A is a metabolite produced when gut bacteria transform ellagitannins found in pomegranates, raspberries, and walnuts. It appears as a pale yellow to off-white powder with the molecular formula C13H8O4 and weight of 228.20 g/mol.
This compound, also known as 3,8-Dihydroxybenzo[c]chromen-6-one (CAS: 1143-70-0), demonstrates excellent bioavailability when consumed. Urolithin A powder stimulates mitophagy, a specialized form of autophagy targeting damaged mitochondria.
Spermidine is a naturally occurring polyamine found in foods like wheat germ, soybeans, and aged cheese. This colorless crystalline compound (CAS: 124-20-9) has a molecular formula of C7H19N3 and directly activates autophagy by inhibiting acetyltransferases.
Resveratrol, a polyphenol found in red grapes and berries, appears as a white to off-white powder. With the molecular formula C14H12O3 (CAS: 501-36-0), it activates SIRT1, which deacetylates autophagy-related proteins and promotes the process.
Reduction of Oxidative Stress (Antioxidant Pathway)
The antioxidant pathway represents one of the most critical mechanisms for cellular protection and longevity. This process focuses on neutralizing harmful free radicals that accumulate through metabolic processes and environmental exposure.
How It Works: Neutralizing Free Radicals, Cellular Protection
Free radicals are unstable molecules with unpaired electrons that damage cells through oxidative stress. Your body naturally produces antioxidants to neutralize these threats, but this system can become overwhelmed with age. Antioxidants donate electrons to free radicals, stabilizing them without becoming reactive themselves.
Oxidative stress contributes significantly to DNA damage and cellular aging. When free radicals attack DNA structures, they create mutations that accelerate aging processes and increase disease risk. Efficient DNA damage repair mechanisms work alongside antioxidant systems to maintain cellular integrity.
The antioxidant defense system operates at multiple levels within your cells. Primary antioxidants like glutathione directly neutralize free radicals, while secondary systems repair oxidative damage that has already occurred. This multi-layered protection helps maintain cellular homeostasis even under challenging conditions.
Ingredients
L-Ergothioneine is a naturally occurring amino acid with powerful antioxidant properties. It specifically accumulates in tissues facing high oxidative stress and neutralizes free radicals effectively. This compound appears as a white crystalline powder with excellent bioavailability through specialized transporters.
Gamma-glutamylcysteine (GGC) serves as the immediate precursor to glutathione synthesis. With the molecular formula C₁₀H₁₅N₃O₄S and CAS number 305-51-7, this white crystalline powder has a molecular weight of 305.32 g/mol. GGC exhibits high bioavailability as a glutathione precursor, making it valuable for antioxidant support.
Curcumin from turmeric provides potent antioxidant protection through multiple mechanisms. It activates Nrf2, a transcription factor that upregulates antioxidant enzyme production in your cells.
EGCG from green tea extract inhibits free radical formation and directly neutralizes existing radicals. This polyphenol can cross the blood-brain barrier, offering neurological protection against oxidative damage.
Alpha-lipoic acid functions as both water and fat-soluble antioxidant, recycling other antioxidants like vitamins C and E. It enhances glutathione production and chelates metal ions that would otherwise generate harmful free radicals.
Mitochondrial Function Improvement
Mitochondrial health directly influences cellular energy production and longevity. Enhancing mitochondrial function can address energy decline, oxidative stress, and cellular aging through specific nutrients and compounds.
How It Works: Mitochondria Health in Energy Production
Mitochondria serve as your cells’ powerhouses, converting nutrients into ATP—the energy currency that fuels virtually all cellular activities. These organelles contain their own DNA and replicate independently within cells, making their maintenance crucial for overall health.
When mitochondria function optimally, they efficiently produce energy while minimizing harmful byproducts. This balance deteriorates with age as mitochondrial membranes become damaged by free radicals.
Declining mitochondrial function contributes to fatigue, muscle weakness, and accelerated aging. Research shows that supporting mitochondrial health can improve energy levels, cognitive function, and physical performance.
The electron transport chain—mitochondria’s primary energy-generating mechanism—requires specific cofactors to operate efficiently. Without these nutrients, energy production falters and oxidative damage increases.
Ingredients
Coenzyme Q10 (CoQ10) is a fat-soluble compound essential for mitochondrial energy production. This quinone molecule participates directly in the electron transport chain, enhancing ATP synthesis. With age, natural CoQ10 levels decline significantly, making supplementation valuable for energy support.
PQQ (Pyrroloquinoline quinone) stimulates mitochondrial biogenesis—the creation of new mitochondria. This PQQ Disodium Salt enhances energy production while reducing oxidative stress, improving both cellular energy and recovery from physical exertion.
Urolithin A promotes mitophagy, the process of removing damaged mitochondria. This metabolite of ellagitannins (found in pomegranates) supports mitochondrial renewal and cellular efficiency.
R-Alpha Lipoic Acid functions as both a powerful antioxidant and cofactor in mitochondrial energy production. Unlike regular ALA, the R isomer demonstrates superior bioavailability and effectiveness for protecting mitochondria.
L-carnitine transports fatty acids into mitochondria for energy conversion. This amino acid derivative ensures fuel availability for optimal mitochondrial function and sustained energy production.
Telomere Lengthening and Protection
Telomeres act as protective caps at the ends of chromosomes, preventing DNA degradation during cell division. Their preservation is fundamental to cellular health and longevity, with several compounds demonstrating promising effects on telomere maintenance.
How It Works: Importance of Telomeres in Cellular Aging
Telomeres are repetitive DNA sequences (TTAGGG) that shield the ends of chromosomes from damage. Each time a cell divides, telomeres naturally shorten until they reach a critical length, triggering cellular senescence or cell death. This process is closely linked to aging and age-related diseases.
The enzyme telomerase counteracts this shortening by adding DNA sequences to telomere ends. In most adult cells, telomerase activity is minimal, but certain interventions may enhance telomere maintenance.
Factors like oxidative stress, inflammation, and psychological stress accelerate telomere shortening. Conversely, lifestyle modifications such as regular exercise, stress management, and dietary improvements can help preserve telomere length.
Ingredients
Astragalus (Astragaloside IV)
- Definition: A bioactive compound extracted from Astragalus membranaceus roots
- CAS Number: 84687-43-4
- Molecular Formula: C₄₁H₆₈O₁₄
- Appearance: White crystalline powder
- Mechanism: Activates telomerase gene expression in immune cells
- Bioavailability: Limited oral absorption (approximately 2.2%)
TA-65 (Cycloastragenol)
- Definition: Purified telomerase activator derived from Astragalus
- CAS Number: 78574-94-4
- Molecular Formula: C₃₀H₅₀O₅
- Appearance: White to off-white powder
- Mechanism: Upregulates telomerase activity and reduces senescent cells
- Key Benefits: Potentially increases telomere length and improves immune function
Resveratrol
- Definition: Polyphenolic compound found in grapes, berries, and peanuts
- CAS Number: 501-36-0
- Molecular Weight: 228.24 g/mol
- Mechanism: Protects telomeres through antioxidant effects and SIRT1 activation
Senolytic Activity
Senolytic activity represents one of the most promising interventions in longevity science, focusing specifically on the targeted elimination of senescent cells that accumulate with age. These interventions can potentially address age-related decline at its cellular source through various compounds with distinct mechanisms.
How It Works: Clearing Senescent Cells to Delay Aging
Senescent cells are damaged cells that have stopped dividing but remain metabolically active, secreting inflammatory compounds known as the Senescence-Associated Secretory Phenotype (SASP). These cells contribute significantly to tissue dysfunction and accelerate aging processes throughout the body.
Senolytics function by triggering apoptosis (programmed cell death) specifically in senescent cells while leaving healthy cells untouched. This selective targeting occurs because senescent cells uniquely depend on certain pro-survival pathways.
When these harmful cells are cleared, tissue function improves remarkably across multiple systems. Studies in mice have demonstrated restored cardiac function, improved vascular health, and enhanced physical performance following senolytic treatments.
The removal of senescent cells has also been shown to increase lifespan in animal models by 25-35%, making cellular senescence a key therapeutic target for longevity interventions.
Ingredients
Quercetin is a plant flavonoid found in apples, onions, and green tea. This polyphenol (CAS: 117-39-5) has a molecular weight of 302.24 g/mol and appears as a yellow crystalline powder. Quercetin disrupts anti-apoptotic pathways in senescent cells, particularly through BCL-2 inhibition. Its bioavailability is enhanced when combined with fat-soluble substances or phospholipids.
Fisetin is a flavonoid (CAS: 528-48-3) with remarkable senolytic properties found naturally in strawberries, apples, and persimmons. This yellow crystalline compound (molecular formula C15H10O6) has demonstrated potent senolytic activity in preclinical studies. Fisetin effectively eliminates senescent cells by interfering with PI3K/AKT pathways that senescent cells rely on for survival.
Dasatinib is a pharmaceutical tyrosine kinase inhibitor originally developed for leukemia treatment. It targets multiple pro-survival pathways in senescent cells, particularly effective against senescent preadipocytes. Dasatinib is frequently combined with Quercetin (D+Q) in senolytic therapies to achieve broader efficacy across different cell types.
Inflammation Reduction
Chronic inflammation underlies many age-related diseases and accelerates the aging process. Targeting inflammatory pathways through specialized nutrients and bioactive compounds offers a promising approach to extending healthspan and potentially lifespan.
How It Works: Controlling Inflammaging
Inflammaging—the chronic, low-grade inflammation that develops with age—damages cells and tissues throughout the body. This persistent inflammatory state activates the NF-κB pathway, a master regulator of inflammation, triggering the release of pro-inflammatory cytokines like IL-6 and TNF-α.
Several biological mechanisms can counteract inflammaging. Glycine, a simple amino acid, inhibits inflammatory signaling in multiple cell types and reduces NF-κB activation. At 2-5 grams daily, it helps maintain cellular integrity and supports immune balance.
Adaptogens like Ashwagandha (Withania somnifera) and Rhodiola rosea work by modulating stress responses that contribute to inflammation. These botanical medicines stabilize HPA axis function and reduce cortisol levels, which otherwise would amplify inflammatory processes.
Sulforaphane, found in broccoli extract, activates the Nrf2 pathway—a powerful cellular defense system that upregulates antioxidant enzymes and reduces oxidative stress-induced inflammation.
Ingredients
Collagen peptides provide glycine, proline, and hydroxyproline that support tissue repair and reduce inflammatory markers. Marine collagen, derived from fish scales and skin, offers superior bioavailability compared to bovine sources.
Glucosamine, typically used for joint health, inhibits NF-κB activation throughout the body. Studies show it reduces C-reactive protein levels with consistent daily intake of 1500mg.
Functional mushrooms like Reishi (Ganoderma lucidum) and Lion’s Mane (Hericium erinaceus) contain beta-glucans and triterpenes that modulate immune function and reduce inflammatory cytokine production.
Ginger contains gingerols and shogaols that inhibit cyclooxygenase-2 (COX-2) and lipoxygenase pathways, similar to NSAIDs but without the side effects. Just 1-2g daily shows measurable anti-inflammatory benefits.
Taurine, a conditionally essential amino acid, reduces inflammation by stabilizing cell membranes and neutralizing hypochlorous acid, a potent oxidant produced during immune responses.
Conclusion
The study of longevity pathways represents a frontier in biomedical research with profound implications for human health and aging. These biological mechanisms offer insights into how we might extend not just lifespan, but healthspan—the period of life free from disease and decline.
Research into pathways like mTOR, sirtuins, and AMPK continues to evolve rapidly. Scientists have identified that these systems respond to environmental factors including nutrition, exercise, and stress, creating opportunities for intervention through lifestyle modifications.
Caloric restriction and intermittent fasting stand out as dietary approaches with substantial evidence supporting their activation of longevity pathways. These practices trigger cellular maintenance programs that may delay aging processes.
Certain compounds show promise as longevity-promoting agents. Resveratrol, metformin, and rapamycin have demonstrated effects on key pathways, though their optimal use in humans requires further investigation.
The genetic components influencing these pathways vary among individuals, suggesting that personalized approaches to longevity may prove most effective. Your genetic profile might determine which interventions provide the greatest benefit.
As research advances, practical applications of longevity science will likely become increasingly accessible. The goal remains not merely extending life, but ensuring those additional years are healthy and fulfilling.
The intersection of longevity pathways with emerging technologies like artificial intelligence and gene editing promises to accelerate discoveries in this field, potentially revolutionizing how we approach aging in the coming decades.
Frequently Asked Questions
Longevity pathways represent complex biological mechanisms that influence aging and lifespan. These pathways interact with environmental factors, genetic components, and lifestyle choices to potentially extend healthy years of life.
What factors influence the activation of longevity-associated signaling pathways?
Nutrient sensing pathways like mTOR, AMPK, and insulin/IGF-1 are activated or inhibited by specific environmental conditions. Caloric restriction directly influences these pathways by reducing mTOR activity and increasing AMPK signaling, which promotes cellular repair mechanisms.
Hormesis, the beneficial effect of mild stressors, activates longevity pathways through controlled exposure to challenges like temperature variation or exercise. This stress response upregulates protective cellular mechanisms that enhance longevity.
Environmental factors such as temperature, oxygen levels, and exposure to natural plant compounds (phytochemicals) can trigger adaptive responses. These stressors activate transcription factors like FOXO and Nrf2 that regulate hundreds of genes involved in cellular maintenance.
Which genetic modifications have been associated with extended lifespans in model organisms?
Mutations in the insulin/IGF-1 signaling pathway have consistently shown lifespan extension across multiple species. In C. elegans worms, daf-2 mutations can double lifespan, while similar pathway modifications extend life in flies and mice.
FOXO transcription factor overexpression increases stress resistance and longevity in various organisms. These transcription factors regulate hundreds of genes involved in metabolism, stress resistance, and DNA repair.
Sirtuin gene upregulation, particularly SIRT1, SIRT3, and SIRT6, has demonstrated lifespan extension in model organisms. These NAD+-dependent deacetylases maintain genomic stability and improve metabolic health during aging.
How do calorie restriction and dietary patterns affect aging and lifespan?
Caloric restriction without malnutrition reduces metabolic rate and oxidative damage while increasing autophagy. This dietary approach typically involves 20-40% fewer calories than normal while maintaining essential nutrients, activating stress response pathways like AMPK and inhibiting mTOR.
Intermittent fasting induces similar metabolic changes as caloric restriction through time-restricted eating windows. Common protocols include alternate-day fasting, 5:2 method (two fasting days per week), or daily 16-8 hour feeding-fasting cycles that trigger cellular maintenance mechanisms.
Nutrigenomics research shows that certain bioactive compounds in foods directly interact with longevity pathways. Resveratrol from grapes, curcumin from turmeric, and sulforaphane from cruciferous vegetables can modulate sirtuin activity and influence epigenetic modifications that affect lifespan.
Can exercise and physical activity modulate the biological processes of aging?
Regular physical activity stimulates mitochondrial biogenesis and improves mitochondrial quality control. Exercise increases the expression of PGC-1α, a key regulator of mitochondrial formation, helping to counteract age-related mitochondrial dysfunction.
Resistance training specifically preserves muscle mass and strength that typically decline with age. This exercise modality increases mTOR pathway activation in muscle tissue while still allowing systemic benefits of mTOR inhibition in other tissues.
Endurance exercise activates AMPK signaling, which suppresses inflammation and enhances cellular cleanup processes. Even moderate activity like brisk walking for 30 minutes daily triggers beneficial hormetic responses that improve cardiovascular health and metabolic flexibility.
What role do sirtuins play in promoting cellular health and longevity?
Sirtuins function as NAD+-dependent deacetylases that remove acetyl groups from proteins, regulating their activity. This protein family (SIRT1-7 in mammals) responds to metabolic changes and cellular stress, serving as critical sensors of energy status.
SIRT1 deacetylates proteins involved in stress resistance, DNA repair, and metabolic regulation. It modifies histones to change gene expression patterns and deacetylates transcription factors like FOXO3 and PGC-1α to enhance cellular resilience.
SIRT3 and SIRT5 protect mitochondrial function by regulating key metabolic enzymes. These mitochondrial sirtuins become especially important during fasting and caloric restriction, when they help optimize energy production while minimizing oxidative damage.
Are there pharmacological interventions that mimic the effects of calorie restriction on longevity?
Rapamycin directly inhibits mTOR signaling, mimicking a key aspect of caloric restriction. Originally discovered as an antifungal compound and later used as an immunosuppressant, rapamycin has extended lifespan in yeast, worms, flies, and mice by inhibiting protein synthesis and promoting autophagy.
Metformin activates AMPK and improves metabolic health markers associated with longevity. This widely-prescribed diabetes medication reduces inflammation, improves insulin sensitivity, and may influence epigenetic modifications that affect the aging process.
NAD+ precursors like nicotinamide riboside and nicotinamide mononucleotide boost sirtuin activity. These compounds help restore declining NAD+ levels that occur during aging, potentially enhancing the activity of sirtuins and enabling partial cellular reprogramming processes.
