Military & Veterans

Reviewed by SOMA HEALTH's Medical Research Team

Service asks a great deal of the body: heavy loads, broken sleep, long marches, and years of accumulated wear that don't disappear when the uniform comes off. Urolithin A is a compound being studied for its role in muscle function and cellular energy, and it may be a sensible piece of a long-game approach to staying strong and mission-ready, both in active service and in veteran life.

Why the demands of service are, at their root, a demand on your mitochondria

Whether you are rucking under load, standing a long watch, or simply keeping up with a physical job years after separation, the currency your muscles spend is energy. That energy is produced inside mitochondria, the tiny power plants packed into every muscle cell. When mitochondria are numerous, clean, and working efficiently, muscles contract harder for longer and recover faster between efforts. When they are worn down and slow to be replaced, fatigue arrives earlier and lingers.

Two forces work against mitochondrial quality over a service career. The first is sheer physical stress. Research on soldiers has documented that extreme, extended load carriage produces measurable neuromuscular fatigue and changes in how efficiently the body moves. The second is time. Independent of activity, skeletal-muscle mitochondrial capacity tends to decline with age, and that decline tracks with losses in strength and physical function. For a veteran who trained hard for years, both forces are in play at once. The question urolithin A research is chasing is a practical one: can supporting the maintenance of healthy mitochondria help preserve the strength and endurance that service demands?

What urolithin A actually is

Urolithin A is not something you find directly in food. It is a postbiotic: your gut bacteria produce it after you eat ellagitannins, the compounds abundant in pomegranates, walnuts, and certain berries. Here is the catch that surprises most people. Only some microbiomes carry the bacteria needed to make meaningful amounts of urolithin A. Eat the same handful of walnuts as the soldier next to you and one of you may convert it well while the other produces almost none. That variability is a large part of why researchers turned to supplementing the finished compound directly, so the dose does not depend on the luck of your gut flora.

Mechanistically, urolithin A is studied for its support of mitophagy, the housekeeping process by which a cell identifies worn-out mitochondria and recycles them so fresher, more efficient ones can take their place. Think of it as preventive maintenance on the fleet rather than running every vehicle until it fails. For a deeper walk through the biology, our complete urolithin A guide and our overview of mitochondrial health lay out the full picture.

The human evidence, ranked honestly

This is where discipline matters. It is easy to overstate a promising compound. Here is what has actually been shown in people, strongest first.

Established human safety

The first-in-human trial (Andreux and colleagues, published in Nature Metabolism in 2019) found that urolithin A was safe and well tolerated at doses up to 1,000 mg per day, and that it shifted mitochondrial gene-expression signatures in a favorable direction. Safety at the studied dose is the foundation everything else sits on.

Muscle strength and endurance in adults

In a 2022 randomized trial in Cell Reports Medicine (Singh and colleagues), middle-aged adults taking 500 mg or 1,000 mg per day for four months showed improvements in muscle strength and aspects of exercise performance. A separate 2022 randomized trial in JAMA Network Open (D'Amico, Liu and colleagues) in older adults found benefits in muscle endurance over roughly four months. More recently, an eight-week randomized trial in the Journal of the International Society of Sports Nutrition (2024) examined resistance-trained men, and a 2025 trial studied distance runners, extending the work into more athletic, service-relevant populations.

Newer human work on inflammation and immune-cell energy

A 2025 randomized controlled trial in Nature Aging reported that roughly 28 days of urolithin A supported the mitochondrial health of immune cells in midlife adults, an area often described as inflammaging. It is early, but it is human data, and it points at recovery and resilience beyond the muscle itself.

It is worth stating the honest limitation plainly. A 2024 systematic review in Ageing Research Reviews concluded that the evidence for targeting aging with urolithin A in humans is still emerging. These are encouraging, replicated signals in muscle, not a finished story, and no supplement replaces training, sleep, and a service member's medical care. You can read our fuller breakdown on the urolithin A clinical studies page.

What is still preclinical

Some of the most exciting claims you may have seen online rest on animal and cell studies, not human trials, and honesty requires labeling them as such. The foundational mitophagy and lifespan work by Ryu and colleagues (Nature Medicine, 2016) was done in roundworms and rodents, where urolithin A also improved muscle measures. Work on joint and cartilage support in osteoarthritis models (D'Amico and colleagues, Aging Cell, 2022) was likewise preclinical. Areas like skin, gut, brain, and heart remain in early, exploratory research. If joint wear from years of load-bearing is on your mind, the cartilage findings are interesting, but they have not yet been confirmed in people, and joint pain is a medical issue to raise with your physician or VA provider rather than something a gummy is meant to treat.

Practical guidance for service members and veterans

Urolithin A has been studied at 500 to 1,000 mg per day, with 1,000 mg representing the top of that range and the dose tied to the strongest muscle findings. In trials, benefits emerged over roughly two to four months of consistent daily use, so this is a habit, not a pre-workout you feel in twenty minutes. Take it at whatever time you will remember reliably; with a meal is a reasonable default. Our guides on how to take urolithin A and how long it takes to work go deeper, and if you are comparing brands, see our roundup of the best urolithin A gummies.

Fit it into the fundamentals rather than in place of them. Progressive strength training, adequate protein, real recovery, and managing the sleep disruption that comes with duty rotations do the heavy lifting; a mitochondrial-support ingredient is a complement. If you are on active duty, check your branch's supplement guidance and the Operation Supplement Safety (OPSS) resources, and if you take medications or manage a health condition as many veterans do, clear any new supplement with your provider first. Urolithin A is not a treatment for any injury or condition, and it is not a substitute for the care of your physician or VA medical team.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This guide is educational and is not a substitute for advice from a qualified healthcare provider.