CURATED STACKS
THE SUPPLEMENT
GUIDE
Every product on this page is NSF Certified for Sport, Informed Sport certified, or independently third-party tested for purity and label accuracy. No proprietary blends. No underdosed formulas. These are the brands used by elite endurance athletes and the longevity research community.
This is the evidence-backed health stack. Looking for race-day nutrition, training gear, or kitchen tools instead? See the Shop.
Links are Amazon affiliate links — I earn a small commission at no extra cost to you. Full disclosure.
These statements have not been evaluated by the Food and Drug Administration. Products listed are not intended to diagnose, treat, cure, or prevent any disease. Supplement recommendations are for informational and educational purposes only. Consult your physician before starting any supplement regimen, especially if you take medications or have existing health conditions. Full health disclaimer.
START HERE
THE FOUNDATIONAL FOUR
Overwhelmed by the full list? These four cover the highest-impact, best-evidenced basics for adults over 40 — everything else on this page builds on top of them.
BEFORE GUESSING, TEST WHAT'S ACTUALLY LOW
Every recommendation here is general. Real lab data tells you which of these you actually need.
FOUNDATIONAL STACK
What every athlete over 40 should be running. Non-negotiable baseline regardless of goal.
Vitamin D3 + K2 Liquid
Thorne
4,000–5,000 IU D3 with 200mcg K2 daily
Most adults over 40 are deficient. D3 directly influences testosterone, immune function, cardiovascular health, and bone density. K2 ensures calcium goes to bone, not arteries.
Meta-Analysis: The combination effect of vitamin K and vitamin D on human bone quality. Food Funct. 2020 · PMID 32219282
Magnesium Bisglycinate Powder
Thorne
200–400mg elemental magnesium
Most endurance athletes are depleted from sweat losses. Improves sleep architecture, reduces cortisol, supports muscle recovery, and improves insulin sensitivity.
RCT: Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep. Nat Sci Sleep. 2025 · PMID 40918053
Ultimate Omega (1280mg EPA/DHA)
Nordic Naturals
2–4 softgels daily with largest meal
Reduces systemic inflammation, supports cardiovascular health, cognitive function, joint recovery, and mood regulation.
Meta-Analysis: Effects of omega-3 fatty acids on coronary revascularization and cardiovascular events. European Journal of Preventive Cardiology. 2024 · PMID 38869144
Creatine Monohydrate
Thorne
5g daily — stir into coffee, shake, or water
The most researched supplement in existence. Supports strength, power output, muscle retention. Critical after 50 when muscle loss accelerates.
Meta-Analysis: Creatine Ingestion Strategies on Lean Tissue Mass and Strength. Nutrients. 2021 · PMID 34199420
LONGEVITY STACK
The cutting edge of healthspan science. Compounds targeting the nine hallmarks of aging.
NiaCel 400 (Nicotinamide Riboside)
Thorne
400mg NR — 1 capsule daily
NAD+ declines 50% between ages 40 and 60. NR is a direct NAD+ precursor supporting mitochondrial function, DNA repair, and neuronal health.
RCT: Nicotinamide riboside in older adults with mild cognitive impairment. Geroscience. 2024 · PMID 37994989
ResveraCel (NR + Quercetin + Resveratrol)
Thorne
2 capsules once or twice daily
Stacks NR with quercetin phytosome and resveratrol. Quercetin inhibits CD38 (which degrades NAD+), resveratrol activates SIRT1.
RCT: Nicotinamide riboside supplementation is well-tolerated and elevates NAD+ in healthy middle-aged adults. Nat Commun. 2018 · PMID 29599478
Mitopure (Urolithin A)
Timeline
500mg — 1 softgel daily
The only compound clinically proven to activate mitophagy in humans — the cellular process that clears damaged mitochondria and replaces them with healthy ones.
RCT: Urolithin A Supplementation on Running Performance, Recovery, and Mitochondrial Biomarkers. Sports Med. 2025 · PMID 40839339
Senolytic Activator (Fisetin + Quercetin)
Life Extension
2 capsules once weekly (pulsed dosing)
Senolytics clear zombie senescent cells that drive chronic inflammation, tissue damage, and disease. Fisetin is the most potent senolytic compound identified.
Preclinical: Fisetin is a senotherapeutic that extends health and lifespan. EBioMedicine. 2018 · PMID 30279143
spermidineLIFE
Longevity Labs
1 capsule daily with food
Activates autophagy — the cellular self-cleaning process that declines with age. Only clinically validated spermidine supplement.
RCT: Spermidine Mitigates Immune Cell Senescence and Boosts Vaccine Responses in Healthy Older Adults. Aging Cell. 2026 · PMID 42169618
Bio-Fisetin
Life Extension
100mg daily, or 500mg for 2–3 days monthly
Galactomannan-enhanced fisetin with 25x better bioavailability. Senolytic activity, neuroprotection, and anti-inflammatory.
Preclinical: Fisetin is a senotherapeutic that extends health and lifespan. EBioMedicine. 2018 · PMID 30279143
PERFORMANCE STACK
For endurance athletes, masters competitors, and anyone training 4+ days per week.
Whey Protein Isolate
Transparent Labs
25–40g post-workout
High-leucine protein that maximizes muscle protein synthesis. Masters athletes need more protein per pound than younger athletes.
Systematic Review: Whey protein supplementation on muscle strength and physical performance of older adults. Clin Nutr. 2024 · PMID 39303495
Collagen Peptides + Vitamin C
Thorne
10–15g collagen + 50mg vitamin C
Stimulates tendon and connective tissue collagen synthesis when taken pre-workout. Critical for masters athletes with injury history.
Meta-Analysis: Collagen Peptide Supplementation in Combination with Long-Term Physical Training. Sports Med. 2024 · PMID 39060741
Tart Cherry Extract
Life Extension
480mg — 1 capsule twice daily
Reduces exercise-induced muscle damage and DOMS, improves sleep quality, and accelerates recovery between sessions.
Systematic Review: Tart Cherry Juice Supplementation on Recovery from Exercise-Induced Muscle Damage. Sports Med Open. 2026 · PMID 41945263
Creatine/HMB
Transparent Labs
1g three times daily
Anti-catabolic compound that prevents muscle breakdown during high training loads and caloric deficits.
Systematic Review: HMB Supplementation on Body Composition in Sarcopenia. J Cachexia Sarcopenia Muscle. 2025 · PMID 39797501
SuperBeets (Beetroot Nitrates)
HumanN
1 scoop in water — 90 min before key sessions
Converts to nitric oxide improving oxygen efficiency and time-to-exhaustion. One of the few pre-workout compounds with genuine peer-reviewed evidence.
Systematic Review: Beetroot Juice on Physical Performance in Professional Athletes. Nutrients. 2025 · PMID 40573069
BRAIN & COGNITIVE STACK
For neurological longevity, memory, focus, and protection against cognitive decline.
Lion's Mane (60 capsules)
Host Defense
2 capsules twice daily
Stimulates Nerve Growth Factor (NGF) synthesis — the protein responsible for neuroplasticity and neuronal repair.
Systematic Review: Benefits, side effects, and uses of Hericium erinaceus as a supplement. Front Nutr. 2025 · PMID 40959699
Methyl-Guard Plus
Thorne
3 capsules daily with food
Comprehensive methylation support. Directly lowers homocysteine — a neurotoxic and cardiovascular risk marker. Essential for MTHFR carriers.
RCT: Effect of Methylfolate, Pyridoxal-5-Phosphate, and Methylcobalamin supplementation on homocysteine. Nutrients. 2024 · PMID 38892484
Citicoline (CDP-Choline)
Jarrow
250–500mg in the morning
Provides choline for acetylcholine synthesis (memory and focus), plus uridine for membrane repair.
RCT: Citicoline and Memory Function in Healthy Older Adults. J Nutr. 2021 · PMID 33978188
Astaxanthin
Life Extension
4–12mg daily with a fat-containing meal
The most potent antioxidant in nature — 6,000x stronger than vitamin C. Crosses the blood-brain barrier and eye retina.
RCT: Effect of astaxanthin supplementation on cycling performance and muscle damage biomarkers. BMC Sports Sci Med Rehabil. 2025 · PMID 40615903
METABOLIC HEALTH STACK
For blood sugar control, insulin sensitivity, inflammation reduction, and weight management.
Berberine UltraSorb
Pure Encapsulations
550mg — 1 capsule twice daily with meals
Phytosome form with 4x better bioavailability. Comparable to metformin in clinical trials for blood glucose reduction and insulin sensitivity.
Systematic Review: Efficacy and safety of berberine on the components of metabolic syndrome. Front Pharmacol. 2025 · PMID 40740996
Curcumin Phytosome (Meriva SF)
Thorne
500mg twice daily with food
Meriva phytosome form has 29x better absorption than standard curcumin. Reduces CRP, joint inflammation, and systemic inflammatory load.
RCT: Curcumin supplementation on functional strength and markers of exercise-induced inflammation. Nutr Health. 2024 · PMID 37408367
CoQ10 Ubiquinol
Jarrow
100–200mg daily with a fat-containing meal
Ubiquinol is the active, reduced form — significantly better absorbed. Essential if on a statin, which depletes CoQ10 by up to 40%.
RCT: Ubiquinol supplementation enhances peak power production in trained athletes. J Int Soc Sports Nutr. 2013 · PMID 23627788
Pomegranate Extract
Life Extension
500mg daily with food
Punicalagins convert to urolithins (same pathway as Mitopure). Cardiovascular endothelial support and polyphenol antioxidant load.
RCT: Pomegranate Extract on IGF-1 Levels and Telomere Length in Older Adults. Nutrients. 2025 · PMID 41010500
BOOKS
Outlive: The Science & Art of Longevity
Peter Attia
The definitive framework for medicine 3.0. Health span over life span.
The Comfort Crisis
Michael Easter
Why voluntary discomfort drives mental and physical adaptation.
The Oxygen Advantage
Patrick McKeown
Nasal breathing, CO2 tolerance, VO2 max through breath training.
KITCHEN PROTOCOL
Vitamix
Vitamix
Built for daily use. Smoothies, soups, nut butters. The only blender worth buying.
Digital Food Scale
OXO
Track protein intake accurately. Non-negotiable for hitting 1g/lb targets.
Glass Meal Prep Containers
Pyrex
Prep Sunday, eat clean all week. No plastic leaching into food.
Berkey Water Filter
Berkey
Removes 99.9% of contaminants including fluoride. Hydration quality matters.
Classic Shaker Bottle
BlenderBottle
Wide mouth, leak-proof, dishwasher safe. For creatine, protein, collagen.
Cast Iron Skillet 12"
Lodge
Adds dietary iron. Perfect sear on salmon and steak. Lasts forever.
Instant Pot Duo 6qt
Instant Pot
Batch cook legumes, bone broth, lean protein in 20 minutes.
Spiralizer
OXO
Zucchini noodles, beet noodles. Makes vegetable volume eating easy.
ENDURANCE GEAR
Forerunner 965
Garmin
Best multisport GPS watch. Training load, HRV, race predictor, full triathlon.
Wahoo KICKR Move Smart Indoor Trainer
Wahoo
Direct drive trainer. Zwift/TrainerRoad compatible. Near-silent.
Varia Radar RTL515
Garmin
Rear radar + taillight. Alerts 140m before cars overtake. Non-negotiable for road riding.
Digital Hand Dynamometer (Grip Strength Tester)
HICHOR
Grip strength is one of the most consistent predictors of all-cause mortality in the research literature. Test it, track it, and use it as an early-warning signal for overall strength decline.
DAILY LONGEVITY
D3 + K2 Liquid
Thorne
Bone density, immune function, cardiovascular health. Liquid absorbs faster.
Meta-Analysis: The combination effect of vitamin K and vitamin D on human bone quality. Food Funct. 2020 · PMID 32219282
Magnesium Bisglycinate
Thorne
Sleep quality, muscle function, 300+ enzymatic reactions. Most absorbable form.
RCT: Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep. Nat Sci Sleep. 2025 · PMID 40918053
Ultimate Omega
Nordic Naturals
Inflammation reduction, brain health, cardiovascular protection. 2g EPA/DHA daily.
Meta-Analysis: Effects of omega-3 fatty acids on coronary revascularization and cardiovascular events. European Journal of Preventive Cardiology. 2024 · PMID 38869144
Super Ubiquinol CoQ10
Life Extension
Mitochondrial energy production. Ubiquinol form absorbs 8x better than ubiquinone.
RCT: Ubiquinol supplementation enhances peak power production in trained athletes. J Int Soc Sports Nutr. 2013 · PMID 23627788
Mitopure (Urolithin A)
Timeline
The only clinically proven way to clear damaged mitochondria.
RCT: Urolithin A Supplementation on Running Performance, Recovery, and Mitochondrial Biomarkers. Sports Med. 2025 · PMID 40839339
Senolytic Activator
Life Extension
Clears zombie senescent cells. Fisetin + quercetin + theaflavin.
Preclinical: Fisetin is a senotherapeutic that extends health and lifespan. EBioMedicine. 2018 · PMID 30279143
Bio-Fisetin
Life Extension
Senolytic. Crosses blood-brain barrier. Cognitive protection as we age.
Preclinical: Fisetin is a senotherapeutic that extends health and lifespan. EBioMedicine. 2018 · PMID 30279143
ResveraCel
Thorne
NR + resveratrol + quercetin. NAD+ pathway support for cellular aging.
RCT: Nicotinamide riboside supplementation is well-tolerated and elevates NAD+ in healthy middle-aged adults. Nat Commun. 2018 · PMID 29599478
NiaCel 400 (NR)
Thorne
Nicotinamide riboside for NAD+ production. Energy, DNA repair, longevity.
RCT: Nicotinamide riboside in older adults with mild cognitive impairment. Geroscience. 2024 · PMID 37994989
Methyl-Guard Plus
Thorne
Methylation support. MTHFR-friendly B vitamins. Cardiovascular and cognitive health.
RCT: Effect of Methylfolate, Pyridoxal-5-Phosphate, and Methylcobalamin supplementation on homocysteine. Nutrients. 2024 · PMID 38892484
spermidineLIFE
spermidineLIFE
Autophagy activator from wheat germ. Cell renewal, cardiovascular, cognitive.
RCT: Spermidine Mitigates Immune Cell Senescence and Boosts Vaccine Responses in Healthy Older Adults. Aging Cell. 2026 · PMID 42169618
Astaxanthin
Life Extension
Most powerful antioxidant studied. Skin, eye, cardiovascular, endurance protection.
RCT: Effect of astaxanthin supplementation on cycling performance and muscle damage biomarkers. BMC Sports Sci Med Rehabil. 2025 · PMID 40615903
Optimized Curcumin
Life Extension
Longvida-form crosses blood-brain barrier. Anti-inflammatory, neuroprotective.
RCT: Curcumin supplementation on functional strength and markers of exercise-induced inflammation. Nutr Health. 2024 · PMID 37408367
Zinc Bisglycinate
Pure Encapsulations
Immune function, testosterone, wound healing. Gentlest on gut.
Systematic Review: Zinc supplementation and immune factors in adults. Crit Rev Food Sci Nutr. 2022 · PMID 33356467
PERFORMANCE
Creatine Monohydrate
Thorne
5g daily. Strength, power, muscle retention, brain health. Most researched supplement.
Meta-Analysis: Creatine Ingestion Strategies on Lean Tissue Mass and Strength. Nutrients. 2021 · PMID 34199420
Whey Protein Isolate
Transparent Labs
100% whey isolate, no fillers, no artificial sweeteners. Leucine-rich for MPS.
Systematic Review: Whey protein supplementation on muscle strength and physical performance of older adults. Clin Nutr. 2024 · PMID 39303495
Beta Alanine
Thorne
Supports Muscle Output and Endurance
Systematic Review: HMB Supplementation on Body Composition in Sarcopenia. J Cachexia Sarcopenia Muscle. 2025 · PMID 39797501
Beta-Alanine SR
Thorne
Sustained release prevents tingling. Buffers lactic acid. Endurance + power output.
Systematic Review: Beta-alanine supplementation to improve exercise capacity and performance. Br J Sports Med. 2017 · PMID 27797728
Citicoline (CDP-Choline)
Jarrow
Cognitive performance, focus, brain energy. Stacks well with creatine.
RCT: Citicoline and Memory Function in Healthy Older Adults. J Nutr. 2021 · PMID 33978188
Lion's Mane Mushroom
Host Defense
NGF stimulation, neuroplasticity, cognitive edge. Fruiting body only.
Systematic Review: Benefits, side effects, and uses of Hericium erinaceus as a supplement. Front Nutr. 2025 · PMID 40959699
Berberine UltraSorb
Pure Encapsulations
Glucose disposal, metabolic health, mitochondrial function.
Systematic Review: Efficacy and safety of berberine on the components of metabolic syndrome. Front Pharmacol. 2025 · PMID 40740996
Tart Cherry Extract
Life Extension
Reduces DOMS, improves sleep quality, lowers uric acid post-race.
Systematic Review: Tart Cherry Juice Supplementation on Recovery from Exercise-Induced Muscle Damage. Sports Med Open. 2026 · PMID 41945263
RECOVERY
Glycine Powder
Thorne
3–5g before bed. Sleep depth, collagen synthesis, glutathione production.
RCT: The effects of glycine on subjective daytime performance in partially sleep-restricted healthy volunteers. Front Neurol. 2012 · PMID 22529837
Collagen Peptides
Thorne
Joint, tendon, skin collagen support. Take with vitamin C 30 min pre-workout.
Meta-Analysis: Collagen Peptide Supplementation in Combination with Long-Term Physical Training. Sports Med. 2024 · PMID 39060741
Magnesium Glycinate PM
Pure Encapsulations
Second dose at night. Deep sleep, muscle relaxation, nervous system recovery.
RCT: Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep. Nat Sci Sleep. 2025 · PMID 40918053
Taurine
Life Extension
Muscle function, hydration, heart health. Depleted by endurance training.
Meta-Analysis: Acute Impact of a Single Taurine Dose on Exercise Performance. Scand J Med Sci Sports. 2025 · PMID 40852891
Theragun Pro
Therabody
Percussive therapy. Faster than foam rolling. Worth every penny post-race.
Normatec 3 Legs
Hyperice
Pneumatic compression. Standard in pro endurance. Accelerates venous return.
GRID Foam Roller
TriggerPoint
GRID pattern. Daily maintenance between races. Glutes, ITB, thoracic spine.
Compression Socks
CEP
Post-race venous compression. Reduces next-day soreness on long travel days.
RACE DAY
Maurten Gel 100
Maurten
Hydrogel technology. No GI distress at race intensity. 25g carbs per gel.
Systematic Review: Ergogenic effects of acute carbohydrate feeding on endurance performance. Crit Rev Food Sci Nutr. 2024 · PMID 37449467
Maurten Drink Mix 160
Maurten
Pre-race and long training carb loading. 40g carbs, dual-source.
Systematic Review: Ergogenic effects of acute carbohydrate feeding on endurance performance. Crit Rev Food Sci Nutr. 2024 · PMID 37449467
PH 1500 Electrolyte Drink
Precision Hydration
3.5x sodium of standard sports drinks. For heavy sweaters and hot races.
SaltStick Capsules
SaltStick
Electrolyte capsules matching sweat composition. Easy to dose on the bike.
Review: Rehydration during Endurance Exercise: Challenges, Research, Options, Methods. Nutrients. 2021 · PMID 33803421
Honey Stinger Waffles
Honey Stinger
Real honey-based carbs. Easy to eat at race pace. Organic.
UCAN Edge
UCAN
SuperStarch — steady energy without insulin spike. Good for long Z2 days.
Sport Hydration Drink Mix
Skratch Labs
Real fruit flavor, real electrolytes, no artificial anything. Daily training staple.
Review: Rehydration during Endurance Exercise: Challenges, Research, Options, Methods. Nutrients. 2021 · PMID 33803421
PRIORITY QUICK REFERENCE
If budget is a constraint, start here. These deliver the highest impact per dollar for adults over 40.
START HERE ($80–100/MO)
- ▸Vitamin D3+K2
- ▸Magnesium Bisglycinate
- ▸Omega-3
- ▸Creatine
ADD NEXT ($150–200/MO)
- ▸NR/NMN (NiaCel 400)
- ▸Lion's Mane
- ▸Berberine (if metabolic)
- ▸Methyl-Guard Plus (if MTHFR)
FULL LONGEVITY STACK ($300+/MO)
- ▸Mitopure Urolithin A
- ▸Senolytic Activator
- ▸ResveraCel
- ▸Spermidine
- ▸Taurine
- ▸Fisetin
NOT SURE WHAT YOU NEED?
The free protocol generator builds a personalized supplement stack based on your age, weight, goals, and health conditions.
Medical disclaimer. These recommendations are informational only and are not medical advice. Consult your physician before starting any supplement regimen, particularly if you take medications or have existing health conditions.