Reviewed by the Celnovix Editorial Team
Last reviewed: September 2026
By your 60s, healthy aging becomes less abstract.
For many people, the priorities become practical:
- Staying strong enough to travel
- Climbing stairs comfortably
- Carrying groceries
- Maintaining balance
- Continuing exercise
- Preserving independence
- Avoiding unnecessary physical decline
This is also the age when interest in supplements such as:
Urolithin A
often increases.
Unlike many longevity compounds that are supported mainly by:
- Cell studies
- Animal experiments
- Mechanistic theories
Urolithin A has actually been tested in older humans.
One major randomized clinical trial included adults aged:
65 to 90 years.
The average participant was approximately:
72 years old.
That makes Urolithin A unusually relevant to questions about:
healthy muscle aging after 60.
But the results were not uniformly positive.
Researchers found encouraging improvements in selected measures of:
- Muscle endurance
- Mitochondrial-related biomarkers
while important outcomes such as:
- Six-minute walking distance
- Maximal mitochondrial ATP production
did not significantly improve compared with placebo.
So the evidence is promising.
But it does not support claims that Urolithin A:
- Reverses aging
- Treats sarcopenia
- Prevents frailty
- Rebuilds lost muscle
- Replaces exercise
Here is what the research actually shows.
Urolithin A After 60: Quick Answer
Urolithin A may be scientifically relevant after 60 because:
- It has been directly studied in adults aged 65–90.
- Human trials suggest improvements in selected muscle-endurance outcomes.
- It affects mitochondrial-related biomarkers.
- It has generally been well tolerated over several months in studied populations.
However:
- Walking performance has not consistently improved.
- Maximal ATP production has not consistently improved.
- Muscle-mass preservation has not been proven.
- Sarcopenia prevention has not been established.
- Frailty prevention has not been established.
- Multi-year safety remains insufficiently studied.
The most accurate interpretation is:
Urolithin A is a promising adjunct for healthy muscle aging after 60, but current evidence remains too limited to treat it as a proven anti-aging or sarcopenia intervention.
Why Does Muscle Health Matter More After 60?
Muscle is not just about appearance.
Skeletal muscle helps support:
- Mobility
- Balance
- Glucose metabolism
- Bone loading
- Daily physical function
- Independence
As people age, changes can occur in:
- Muscle protein synthesis
- Neuromuscular function
- Mitochondrial function
- Hormonal signaling
- Physical activity
- Recovery
This can gradually contribute to declines in:
strength and physical performance.
Is Muscle Loss After 60 Inevitable?
Some age-related change is common.
But severe muscle decline is not simply:
“normal aging.”
Rates of decline vary considerably according to:
- Physical activity
- Resistance training
- Protein intake
- Chronic disease
- Medication use
- Nutritional status
- Body composition
A physically active person in their 70s may maintain far better muscle function than a sedentary person decades younger.
What Is Sarcopenia?
Sarcopenia is a clinical syndrome involving deterioration in skeletal muscle.
Modern definitions generally emphasize:
low muscle strength
with additional assessment of:
- Muscle quantity
- Muscle quality
- Physical performance
depending on the diagnostic framework.
Sarcopenia is associated with increased risk of:
- Falls
- Disability
- Loss of independence
- Poorer quality of life
Urolithin A should not be confused with an established treatment for this condition.
Has Urolithin A Been Studied Specifically in People Over 60?
Yes.
One randomized, double-blind clinical trial studied:
66 adults aged 65–90 years.
The average age was:
71.7 years.
Approximately:
76% were women.
Participants received either:
- 1,000 mg Urolithin A daily
or:
- Placebo
for:
four months.
This is one of the most relevant studies for anyone asking about Urolithin A after 60.
What Did Researchers Measure?
The trial assessed several different outcomes.
Primary outcomes included:
- Six-minute walk distance
- Maximal mitochondrial ATP production
Secondary outcomes included:
- Hand muscle endurance
- Leg muscle endurance
Researchers also examined:
- Plasma metabolites
- Inflammatory markers
- Adverse events
This is important because different measurements produced:
different results.
Did Urolithin A Improve Muscle Endurance?
This was one of the stronger findings.
After approximately:
two months
participants receiving Urolithin A demonstrated significantly greater improvements in endurance of:
- The first dorsal interosseous muscle of the hand
- The tibialis anterior muscle of the leg
compared with placebo.
In practical terms, muscle endurance refers to:
how long a muscle can continue repeated contractions before fatigue.
Why Might Muscle Endurance Matter After 60?
Daily life depends heavily on repeated muscular effort.
Examples include:
- Walking through an airport
- Climbing stairs
- Carrying groceries
- Gardening
- Standing for extended periods
- Recreational activity
So fatigue resistance can matter even if someone is not trying to:
build larger muscles.
Did Urolithin A Improve Walking Ability?
Not convincingly.
Participants receiving Urolithin A increased their six-minute walking distance by an average of approximately:
60.8 meters.
The placebo group improved by approximately:
42.5 meters.
But the difference between groups was:
not statistically significant.
Therefore, the study did not prove that Urolithin A improves walking performance.
What Does the 2026 Meta-Analysis Say About Walking?
A 2026 systematic review pooled available randomized clinical trials.
It included:
5 randomized controlled trials
and:
236 participants.
The pooled difference in six-minute walking distance was approximately:
+17.03 meters
favoring Urolithin A.
However, the 95% confidence interval was:
−5.33 to +39.40 meters
with:
P = 0.135.
So the pooled result was not statistically significant.
The certainty of evidence was rated:
low.
This means that walking performance should still be considered:
inconclusive.
Did Urolithin A Improve Mitochondrial ATP Production?
Not significantly in the older-adult trial.
Researchers measured maximal mitochondrial ATP production in skeletal muscle.
The Urolithin A group did not significantly outperform placebo.
This is a useful reminder:
Improving mitochondrial biomarkers does not automatically mean maximal ATP production improves.
Then Why Is Urolithin A Still Considered a Mitochondrial Compound?
Because mitochondrial health involves much more than:
ATP output.
Research has investigated UA in relation to:
- Mitophagy
- Mitochondrial quality control
- Fatty-acid metabolism
- Acylcarnitines
- Mitochondrial gene expression
So its research story is better described as:
mitochondrial quality control
rather than simply:
making more cellular energy.
What Is Mitophagy?
Mitophagy is the selective removal of:
damaged or dysfunctional mitochondria.
A simplified pathway looks like:
Damaged mitochondrion
↓
Cellular recognition
↓
Mitophagy signaling
↓
Breakdown and recycling
↓
Improved mitochondrial quality control
This process becomes particularly interesting in aging research because impaired mitochondrial quality control has been associated with age-related decline in skeletal muscle.
For the deeper mechanism:
Urolithin A and Mitophagy: How Does It Actually Work?
Does Mitophagy Decline With Age?
Evidence from aging biology suggests that mitochondrial quality-control processes can become less efficient with age.
This may contribute to accumulation of:
damaged mitochondria.
However, human aging is complex.
Mitochondrial dysfunction is only one part of the picture.
Other contributors include:
- Neuromuscular decline
- Reduced activity
- Inflammation
- Nutrition
- Hormonal changes
Does Urolithin A Restore Mitophagy in Older Adults?
Human studies provide evidence of:
mitochondrial-related target engagement.
But directly measuring whole-body mitophagy in humans is difficult.
Researchers instead examine:
- Muscle proteins
- Gene-expression patterns
- Plasma metabolites
These findings support biological activity.
They do not prove complete restoration of:
youthful mitochondrial function.
Does Urolithin A Improve Strength After 60?
The most direct older-adult trial focused more strongly on:
muscle endurance
than maximal strength.
A separate randomized study in middle-aged adults did report improvements in selected strength outcomes.
That study included:
88 adults
who received:
- 500 mg/day
- 1,000 mg/day
- Placebo
for:
four months.
Selected hamstring strength outcomes improved by roughly:
12%.
But these results should not automatically be extrapolated to every person over 60.
Does Urolithin A Build Muscle After 60?
There is not strong evidence that Urolithin A significantly increases:
muscle mass.
That matters.
Strength, endurance and muscle size are different endpoints.
If the primary goal is to:
build or preserve muscle tissue,
the strongest strategies remain:
- Resistance training
- Adequate protein
- Adequate energy intake
Can Urolithin A Prevent Sarcopenia?
Not established.
The current randomized evidence is too limited to claim that UA:
- Prevents sarcopenia
- Treats sarcopenia
- Reverses sarcopenia
The 2026 meta-analysis specifically concluded that current trials remain:
small, short-term and heterogeneous.
Strength and endurance findings were considered:
exploratory.
What About Frailty?
Frailty is broader than muscle loss.
It can involve:
- Weakness
- Reduced endurance
- Low physical activity
- Weight loss
- Slower mobility
Current Urolithin A trials do not establish UA as:
a treatment for frailty.
This distinction is especially important in people over 60.
Can Urolithin A Keep You Independent Longer?
That has not been proven.
No large long-term trial currently demonstrates that Urolithin A:
- Delays disability
- Prevents nursing-home admission
- Reduces fall rates
- Prolongs independent living
Those would be clinically meaningful outcomes.
But they require much larger and longer studies.
What Is More Important Than Urolithin A After 60?
For maintaining physical function:
exercise.
A 2026 network meta-analysis evaluating sarcopenia interventions included:
115 randomized controlled trials
and:
10,967 participants.
Exercise interventions—particularly resistance and endurance-related strategies—showed meaningful effects on:
- Muscle strength
- Lean mass
- Physical performance
This evidence base is vastly larger than the current UA evidence base.
Resistance Training After 60
Resistance training can include:
- Machines
- Free weights
- Resistance bands
- Bodyweight movements
Common movement patterns include:
- Squats
- Sit-to-stands
- Rows
- Presses
- Hip hinges
- Calf raises
- Carries
The program should match:
- Experience
- Mobility
- Joint health
- Medical status
Protein After 60
Older adults may experience:
anabolic resistance.
This means skeletal muscle can become less responsive to smaller protein doses compared with younger adults.
Adequate protein therefore becomes increasingly important.
Protein provides:
the amino acids needed to build and maintain muscle tissue.
Urolithin A does not.
Urolithin A Cannot Replace Protein
This is a fundamental distinction.
Urolithin A may affect:
mitochondrial quality-control pathways.
Protein provides:
structural building blocks.
No mitochondrial supplement can replace:
- Essential amino acids
- Dietary protein
What About Creatine After 60?
Creatine has a much larger evidence base for older adults.
Research supports its use—particularly with resistance training—for outcomes involving:
- Strength
- Lean tissue
- Exercise capacity
So if the primary goal is:
preserving or improving muscle strength,
creatine currently has stronger evidence than Urolithin A.
Read:
Creatine for Healthy Muscle Aging
Creatine vs Urolithin A After 60
|
Outcome |
Creatine |
Urolithin A |
|---|---|---|
|
Strength |
Strong evidence |
Emerging |
|
Lean mass |
Better evidence |
Limited |
|
Resistance-training support |
Strong |
Limited |
|
Mitophagy |
Not primary focus |
Primary research focus |
|
Mitochondrial quality control |
Secondary |
Major focus |
|
Older-adult trials |
Numerous |
Limited |
They are not substitutes.
Could They Be Combined?
There is no established major incompatibility.
But high-quality human trials proving that:
Creatine + Urolithin A
is superior to either one alone are lacking.
So a mechanistic rationale should not be mistaken for:
proven synergy.
What About Urolithin A and NMN After 60?
These supplements are often grouped together under:
longevity supplements.
But their biology differs.
Urolithin A
Research emphasizes:
- Mitophagy
- Mitochondrial quality control
NMN
Research emphasizes:
- NAD+ metabolism
Neither has been proven to:
reverse aging.
For a direct comparison:
Can You Take NMN and Urolithin A Together?
There is no strong human evidence showing that the combination provides:
superior clinical outcomes.
The mechanisms differ.
But:
different mechanisms ≠ proven synergy.
Read:
Can You Take NMN and Urolithin A Together?
Urolithin A vs CoQ10 After 60
CoQ10 and Urolithin A both relate to mitochondrial biology.
But their roles differ.
CoQ10
Participates directly in the mitochondrial:
electron transport chain.
Urolithin A
Is studied primarily for:
mitochondrial quality control and mitophagy.
Read:
Does Urolithin A Increase Energy After 60?
There is no established stimulant-like effect.
UA is not:
- Caffeine
- A pre-workout stimulant
Some studies evaluate:
- Aerobic capacity
- Muscle endurance
but that is different from:
feeling an immediate energy boost.
What If Fatigue Is the Main Problem?
Persistent fatigue after 60 should not automatically be blamed on:
aging mitochondria.
Possible causes include:
- Anemia
- Thyroid dysfunction
- Sleep apnea
- Heart disease
- Medication effects
- Nutritional deficiencies
- Depression
- Chronic disease
Significant or persistent fatigue deserves appropriate evaluation.
How Long Does Urolithin A Take to Work After 60?
Human research suggests:
Around 4 Weeks
Mitochondrial-related biological changes can be detected.
Around 2 Months
Selected muscle-endurance improvements have been reported.
Around 4 Months
Researchers have assessed:
- Walking performance
- Endurance
- Mitochondrial biomarkers
Read:
How Long Does Urolithin A Take to Work?
What Dose Was Studied in People Over 60?
The older-adult randomized trial used:
1,000 mg/day
for:
four months.
This is a clinical research dose.
It should not automatically be interpreted as:
the correct dose for every person over 60.
Read:
Is 500 mg Enough After 60?
500 mg/day has been studied in other human populations.
But there is no validated age-specific dose saying:
everyone over 60 should take X mg.
The optimal dose remains uncertain.
Is More Urolithin A Better?
No evidence supports:
more is always better.
Clinical responses do not necessarily increase linearly with dose.
Higher intake should not automatically be assumed to produce:
- More mitophagy
- More endurance
- Faster results
Can You Take Urolithin A Every Day After 60?
Daily dosing was used in the older-adult trial.
Short- to medium-term tolerability was favorable.
However:
multi-year safety remains less well established.
Read:
Can You Take Urolithin A Every Day?
Were There More Side Effects in Older Adults?
In the four-month older-adult trial, researchers did not find a statistically significant difference in adverse events between:
- Urolithin A
- Placebo
That is reassuring.
But a 66-person trial cannot reliably detect every:
rare adverse effect.
Read:
Polypharmacy Matters More After 60
One major difference between someone aged 30 and someone aged 70 is the likelihood of taking:
multiple medications.
Common examples include:
- Statins
- Blood-pressure medication
- Diabetes medication
- Anticoagulants
- Antiplatelet drugs
- Thyroid medication
Formal interaction studies for UA remain limited.
Does Urolithin A Interact With Statins?
No major interaction has been clearly established.
But dedicated interaction data are limited.
Because statins can already be associated with:
- Muscle symptoms
- Changes in liver enzymes
people taking them should avoid assuming every supplement combination has been comprehensively studied.
Does Urolithin A Interact With Blood Thinners?
There is insufficient high-quality clinical evidence to confidently rule out all relevant interactions with drugs such as:
- Warfarin
- Apixaban
- Rivaroxaban
- Clopidogrel
Individual medication review is appropriate.
What About Diabetes Medication?
Again, no major specific interaction has been established.
But there is not enough long-term interaction research to treat Urolithin A as universally interaction-free.
Does Urolithin A Affect the Liver?
Existing human trials have not demonstrated a clear hepatotoxicity signal.
But participants with severe liver disease are underrepresented.
So the appropriate conclusion is:
no clear liver toxicity signal in existing trials
rather than:
proven safe for every liver condition.
What About Kidney Function?
Current trials have not identified a consistent kidney-toxicity signal.
However, advanced chronic kidney disease is poorly represented.
This matters more after 60 because reduced kidney function becomes more common with age.
Urolithin A After 60 for Women
Women were well represented in the major older-adult trial.
Approximately:
three quarters of participants were women.
That gives the evidence reasonable relevance to older women.
But UA has not been proven to prevent:
- Postmenopausal muscle loss
- Osteoporosis
- Frailty
Urolithin A After 60 for Men
Older men can also experience:
- Loss of muscle strength
- Reduced activity
- Hormonal changes
- Changes in body composition
But there is no validated male-specific UA dose or recommendation.
What About Urolithin A After 70?
The average age of participants in the major older-adult trial was approximately:
72 years.
So people in their early 70s are directly represented.
This is one reason UA is more interesting for healthy-aging research than supplements studied only in young adults.
What About Urolithin A After 80?
The clinical trial included participants up to:
90 years old.
But the total sample size was still small.
Therefore evidence should not automatically be generalized to:
- Very frail adults
- Nursing-home residents
- People with severe sarcopenia
- People with major multimorbidity
What About Urolithin A After 90?
Controlled evidence is extremely limited.
Age alone also becomes less useful as a predictor of:
physiological health.
A person’s:
- Frailty
- Medication burden
- Kidney function
- Mobility
- Nutritional status
may matter more than chronological age.
Does Urolithin A Prevent Falls?
Not established.
Falls involve multiple factors:
- Balance
- Vision
- Neurologic function
- Medication effects
- Strength
- Home environment
No current evidence establishes UA as:
a fall-prevention intervention.
Does Urolithin A Improve Balance?
Not established.
Balance-specific benefits have not been convincingly demonstrated in randomized human research.
Does Urolithin A Help With Walking Speed?
Evidence on overall physical function remains limited.
Walking outcomes have generally been:
inconclusive.
Exercise remains the stronger intervention for maintaining mobility.
Can Urolithin A Help You Stay Active?
Possibly indirectly through effects on:
muscle endurance.
But this has not been proven as a real-world outcome such as:
- More daily steps
- Greater independence
- Fewer mobility limitations
Those studies have not yet been completed.
What Does the 2024 Human Systematic Review Tell Us?
A 2024 systematic review examined:
five human studies
including:
250 healthy individuals.
Urolithin A was studied at:
10–1,000 mg/day
for:
28 days to four months.
The review found changes in:
- Selected mitochondrial genes
- Autophagy markers
- Fatty-acid oxidation
- Muscle strength and endurance
But there were no consistent improvements in:
- Overall physical function
- Maximal ATP production
- Mitochondrial biogenesis
- Cardiovascular outcomes
View the systematic review on PubMed
What Does the Latest 2026 Evidence Tell Us?
The 2026 meta-analysis is particularly important because it looks beyond individual positive studies.
Its conclusion was cautious.
Current randomized evidence consists of:
five small, short-term trials.
The researchers described non-walking outcomes involving:
- Strength
- Endurance
- Aerobic capacity
- Mitochondrial biomarkers
as:
exploratory signals rather than reproducible proof of efficacy.
That is the evidence standard Celnovix follows.
A Practical Healthy-Aging Hierarchy After 60
If maintaining muscle and independence is the goal, consider the hierarchy.
Tier 1: Resistance Training
Highest priority.
Tier 2: Adequate Protein and Nutrition
Provide the materials needed to maintain muscle.
Tier 3: Regular Aerobic Activity
Support cardiovascular fitness and overall function.
Tier 4: Balance and Mobility Training
Especially relevant as fall risk increases.
Tier 5: Sleep and Recovery
Necessary for training and overall health.
Tier 6: Address Medical Problems
Treat reversible causes of weakness or fatigue.
Tier 7: Evidence-Based Supplements
Consider these as adjuncts—not replacements.
Where Does Urolithin A Fit?
UA fits best in:
Tier 7.
Not because it is uninteresting.
But because the interventions above it have:
much stronger clinical evidence.
This framing keeps supplement use in proportion.
Is Urolithin A Worth Considering After 60?
For someone specifically interested in:
- Mitochondrial health
- Healthy muscle aging
- Muscle endurance
- Mitophagy
Urolithin A is one of the more scientifically interesting emerging compounds.
But expectations should remain realistic.
Think:
potential supportive tool
rather than:
anti-aging solution.
Who Should Be Especially Careful?
Additional caution is appropriate for people with:
- Significant kidney disease
- Significant liver disease
- Active cancer
- Complex cardiovascular disease
- Multiple prescription medications
- Severe frailty
- Unexplained muscle weakness
- Unintentional weight loss
In these situations, underlying health issues matter more than adding another supplement.
Red Flags That Should Not Be Blamed on Aging
Seek appropriate medical evaluation for:
- Rapid loss of strength
- Repeated falls
- New difficulty walking
- Unexplained weight loss
- Persistent severe fatigue
- New neurologic symptoms
- Marked muscle wasting
These may reflect more than ordinary aging.
Urolithin A After 60: Evidence Scorecard
|
Question |
Current Evidence |
|---|---|
|
Studied in adults 65–90? |
Yes |
|
Muscle-endurance benefits? |
Promising |
|
Strength benefits? |
Emerging |
|
Walking benefit? |
Inconclusive |
|
Maximal ATP improvement? |
Not established |
|
Muscle-mass preservation? |
Not established |
|
Sarcopenia treatment? |
No |
|
Frailty treatment? |
No |
|
Fall prevention? |
No |
|
Daily short-term use studied? |
Yes |
|
Multi-year safety established? |
No |
The Bottom Line
Is Urolithin A worth considering after 60?
There is a legitimate scientific reason to be interested.
Unlike many longevity supplements, Urolithin A has been directly evaluated in adults aged:
65 to 90 years.
The strongest older-adult randomized trial found improvements in selected measures of:
muscle endurance
and changes in:
metabolic biomarkers.
But important primary outcomes involving:
- Walking distance
- Maximal mitochondrial ATP production
did not significantly improve.
And the latest 2026 meta-analysis concludes that the overall randomized evidence remains:
small, short-term and low certainty for key functional outcomes.
So the appropriate conclusion is not:
“Everyone over 60 should take Urolithin A.”
It is:
Urolithin A is an emerging healthy-aging supplement with interesting human evidence for mitochondrial biology and muscle endurance, but exercise, nutrition and overall health management remain substantially more important.
After 60, preserving physical independence is rarely about finding one compound.
It is about maintaining:
strength
movement
nutrition
recovery
and:
medical health.
Urolithin A may complement that foundation.
It should not replace it.
Frequently Asked Questions
Is Urolithin A good for people over 60?
It has promising human evidence for selected muscle-endurance and mitochondrial-related outcomes, but it is not universally recommended or proven to prevent age-related decline.
Has Urolithin A been tested in older adults?
Yes. One major randomized trial included adults aged 65–90, with an average age around 72.
Does Urolithin A improve muscle strength after 60?
Evidence for strength is promising but remains limited. Stronger strength evidence currently comes from a middle-aged-adult trial rather than the major older-adult trial.
Does Urolithin A improve muscle endurance?
Selected hand and leg muscle-endurance measures improved in an older-adult randomized trial.
Does Urolithin A help walking after 60?
Current evidence is inconclusive. A 2026 pooled analysis found a favorable direction but no statistically significant improvement.
Does Urolithin A prevent muscle loss?
It has not been proven to prevent age-related muscle-mass loss.
Does Urolithin A prevent sarcopenia?
No. It is not an established sarcopenia treatment or prevention strategy.
Can Urolithin A prevent frailty?
No human evidence currently establishes UA as a treatment or prevention for frailty.
Can Urolithin A prevent falls?
No.
Is Urolithin A better than creatine after 60?
For strength and lean tissue, creatine currently has substantially stronger evidence. UA has more specific research around mitophagy and mitochondrial quality control.
Can you take creatine and Urolithin A together?
No major incompatibility is established, but strong human evidence proving added benefit from the combination is lacking.
Is Urolithin A better than NMN after 60?
Neither is universally better. They target different biological pathways and neither has been proven to reverse aging.
What dose was used in older adults?
The major randomized older-adult trial used 1,000 mg/day for four months.
Can you take Urolithin A every day after 60?
Daily use has been studied over several months. Multi-year safety is not yet well characterized.
Does Urolithin A give older adults more energy?
It is not a stimulant, and no predictable immediate energy boost has been established.
How long might Urolithin A take to work?
Mitochondrial-related changes may occur within several weeks, while muscle-related outcomes have generally been studied over two to four months.
Is Urolithin A safe after 70?
Short-term randomized research in adults averaging around 72 years found favorable tolerability, but individual health conditions and medications matter.
Related Celnovix Guides
- Urolithin A After 50
- How to Maintain Muscle Mass After 50
- Creatine for Healthy Muscle Aging
- Urolithin A and Muscle Health
- Urolithin A and Mitophagy
- What Is Urolithin A?
- Urolithin A Benefits
- How Long Does Urolithin A Take to Work?
- Can You Take Urolithin A Every Day?
- Urolithin A Side Effects
- Urolithin A Dosage Guide
- Pomegranate vs Urolithin A
- NMN vs Urolithin A
References
Liu S, et al.
Effect of Urolithin A Supplementation on Muscle Endurance and Mitochondrial Health in Older Adults: A Randomized Clinical Trial
This randomized clinical trial included:
66 adults aged 65–90 years.
Participants received:
1,000 mg Urolithin A per day
or placebo for:
four months.
Urolithin A significantly improved selected hand and leg muscle-endurance outcomes.
However, the study did not show statistically significant improvement versus placebo for its primary outcomes involving:
- Six-minute walking distance
- Maximal mitochondrial ATP production
No statistically significant difference in adverse events was observed between groups.
Dao T, et al.
Effects of Urolithin A Supplementation on Muscle Health Outcomes in Humans From Randomized Controlled Trials
Published in 2026, this systematic review and meta-analysis included:
5 randomized controlled trials and 236 participants.
The pooled six-minute walk effect was:
+17.03 meters
with a 95% confidence interval of:
−5.33 to +39.40 meters.
The result was not statistically significant.
Evidence certainty for this outcome was rated:
low.
The authors described findings for strength, endurance and mitochondrial biomarkers as exploratory.
Hodzic Kuerec A, et al.
Targeting Aging With Urolithin A in Humans: A Systematic Review
This systematic review examined:
five human studies involving 250 healthy individuals.
Urolithin A doses ranged from:
10–1,000 mg/day
for:
28 days to four months.
The review identified selected effects on:
- Muscle strength
- Muscle endurance
- Mitochondrial genes
- Autophagy markers
- Fatty-acid oxidation
but no consistent improvement in:
- Overall physical function
- Maximal ATP production
- Cardiovascular outcomes
Singh A, et al.
Urolithin A Improves Muscle Strength, Exercise Performance, and Biomarkers of Mitochondrial Health in a Randomized Trial in Middle-Aged Adults
This randomized trial involved:
88 middle-aged adults
receiving:
- Placebo
- 500 mg/day Urolithin A
- 1,000 mg/day Urolithin A
for four months.
Selected muscle-strength outcomes improved, while the study’s primary peak-power endpoint did not significantly improve.
Industry sponsorship and author affiliations were disclosed.
Evidence Transparency
Important limitations include:
- Only a small number of randomized UA trials currently exist.
- Older-adult sample sizes remain small.
- Most studies lasted four months or less.
- Participants in the older-adult trial were all White.
- Frail and highly multimorbid older adults remain underrepresented.
- Several foundational trials have industry involvement.
- Strength, endurance and physical-function endpoints are heterogeneous.
- No evidence currently establishes prevention of falls, frailty or sarcopenia.
- Long-term effects on disability or independence remain unknown.
Editorial Standards
Celnovix distinguishes between:
- Muscle endurance
- Muscle strength
- Muscle mass
- Walking performance
- Mitochondrial biomarkers
- Clinical disease outcomes
These are not interchangeable.
We do not interpret:
- Muscle-endurance improvement as proof of sarcopenia treatment
- Biomarker improvement as proof of lifespan extension
- Older-adult trial participation as evidence everyone over 60 should supplement
- Short-term tolerability as proof of lifelong safety
Medical Disclaimer
This article is provided for general educational and informational purposes only and does not constitute medical advice, diagnosis, treatment or an individualized supplement recommendation.
Urolithin A is not established as a treatment for sarcopenia, frailty, mitochondrial disease or other medical conditions.
If you are experiencing rapid muscle loss, unexplained weakness, recurrent falls, significant fatigue or unintentional weight loss, seek evaluation from an appropriately qualified healthcare professional.
People taking multiple prescription medications or living with significant kidney, liver, cardiovascular, endocrine or oncologic conditions should discuss supplement use with their healthcare professional.
