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Urolithin A For Age-Related Muscle Decline? - ConsumerLab.com

Answer: Urolithin A is a natural compound formed by the bacteria in the colons of many people after consuming certain foods. Urolithin A seems to improve the function of mitochondria (the "powerhouses" inside our cells). However, clinical research with urolith

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Answer:

Urolithin A is a natural compound formed by the bacteria in the colons of many people after consuming certain foods. Urolithin A seems to improve the function of mitochondria (the "powerhouses" inside our cells). However, clinical research with urolithin A has suggested only limited benefit in improving muscle health in active young adults or middle-aged and older adults. Urolithin A has also been touted for treating osteoarthritis (painful, worn joints), preventing kidney damage, and preventing age-related macular degeneration (AMD), but is there evidence to support these uses, and is it safe? Also, do popular urolithin A supplements on the market really contain what they claim, and how do they compared on quality and cost? Sign in as a member to get the details in our full answer, which includes information about products including Timeline Mitopure , CodeAge Liposomal Urolithin A , Pure Encapsulations Renual , and Neurogan Health Pro+ Urolithin A , as well as lesser-known brands sold on Amazon. Also learn about companies that have been banned by a U.S. federal court from manufacturing, selling, or distributing urolithin A supplements. Also see our separate article about other supplements for building and maintaining muscle . + — 15 sources In addition the results of its expert testing, ConsumerLab uses only high-quality, evidence based, information sources. These sources include peer-reviewed studies and information from agencies such as the FDA and USDA, and the National Academy of Medicine. On evolving topics, studies from pre-print journals may be sourced. All of our content is reviewed by medical doctors and doctoral-level experts in pharmacology, toxicology, and chemistry. We continually update and medically review our information to keep our content trustworthy, accurate, and reliable. The following sources are referenced in this article:

  • Andreux, Nat Metab 2019
  • Cerda, J Agric Food Chem 2005
  • Chung, Cell Metab 2019
  • Cortes-Martin, Food Funct 2018
  • D'Amico, Aging Cell 2022
  • D'Amico, Trends Mol Med 2021
  • Fivenson, Neurochem Int 2017
  • Jimenez-Loygorri, Mol Neurodegener 2024
  • Liu, JAMA Netw Open 2022
  • Moon, Exp Neurobiol 2015
  • Palikaras, Nat Cell Biol 2018
  • Wang, Arthritis Rheumatol 2015
  • Whitfield, Sports Med 2025
  • Zhang, Front Pharmacol 2022
  • Zhao, J Int Soc Sports Nutr 2024

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Related questions

01Does everyone produce urolithin A naturally?

No, only about 40% of people have the specific gut microbes needed to convert food precursors into UA.

Source: www.healthline.com ↗
Research context

Read sources and limitations before applying a claim.

Where’s the Evidence?

In studies, supplementing with urolithin A has shown promise for improving muscle function and exercise endurance (3). The benefits are especially notable in older adults who are experiencing age-related declines in mitochondrial activity, Knöbel says.A review of 15 studies on urolithin A noted positive changes in mitochondrial health and inflammation (4). “The most significant impact that we found was improving sarcopenia—the natural aging loss of lean muscle and musculoskeletal tissue,” says Stephanie Petrosky, D.C.N., M.H.A., and a co-author of the study. A reduction in sarcopenia translates into more effective muscle building.

Source: honehealth.com ↗

What the Urolithin A Evidence Actually Shows

Urolithin A occupies an unusual position in the supplement landscape. The mechanism is well-characterized in animals and, at the biomarker level, in humans. But clinical-endpoint evidence is still maturing, and sample sizes across published RCTs are modest. Grading each claim separately is the most honest approach. Evidence grades used in this section: Strong: >=2 well-designed RCTs in humans on a clinically meaningful endpoint, ideally with a meta-analysis showing a consistent direction of effect. Or a single very large RCT (N>1,000) with replicable methodology. Moderate: >=1 RCT in humans with a clinically meaningful endpoint, OR multiple smaller RCTs with mixed results, OR a single high-quality RCT on a surrogate endpoint. Limited: Only small (N<50), short (<8 weeks), or methodologically weak human trials; or only observational evidence in humans. Animal-only / Preclinical: No completed human trials. In-vitro, animal-model, or Phase 1 safety data only. Anecdotal: No controlled evidence of any kind — case reports, testimonials, mechanistic plausibility, or marketing claims unsupported by published data.

Source: superpower.com ↗
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