Urolithin A
Muscle health & mitophagy. Browse evidence-based comparisons to find the best urolithin a for your specific health goal.
- Pregnancy and breastfeeding: Consult your healthcare provider before taking this supplement during pregnancy or while nursing. The safety of supplemental doses beyond dietary intake has not been established in pregnant or lactating women.
- Blood thinners: If you take blood-thinning medications (e.g., warfarin, apixaban, rivaroxaban, clopidogrel, or high-dose aspirin), consult your healthcare provider BEFORE starting this supplement, as it may have additive antiplatelet or anticoagulant effects.
- Kidney disease: If you have chronic kidney disease (CKD) or any significant kidney impairment, consult your healthcare provider before taking this supplement. Some supplements can accumulate to dangerous levels when kidney function is reduced.
- Gout: Individuals with gout should consult their healthcare provider before starting this supplement. Certain supplements (e.g., collagen, fish oil, niacin) may affect uric acid levels or trigger flares in susceptible individuals.
- Important: This supplement is not a replacement for prescription medications. It is supportive for individuals with low baseline status, not a treatment for diagnosed conditions (anxiety disorders, insomnia, hypertension, osteoporosis, etc.). Do not stop or reduce any prescription without consulting your doctor.
What do you want urolithin a to help with?
Evidence is outcome-specific. Start with the result you care about instead of treating one supplement grade as universal. Paths are ordered by the evidence labels already attached to the published guides.
Muscle Health
Only Mitopure has Phase 2 RCT data: 12% muscle strength gain in older adults. We compare Mitopure vs generic UA — same molecule, very different evidence.
Cellular Aging
Compare the 3 best urolithin A supplements for cellular aging in 2026. Evidence-based rankings, clinical data, dosage guide, and NMN comparison included.
GLP-1 Muscle Loss Prevention
Urolithin A may support mitochondrial quality in muscle. Dietitian-reviewed guide for adults on GLP-1 agonists concerned about muscle preservation during weight loss.
Energy
Urolithin A supports energy indirectly via mitophagy. Learn who may benefit, timeline, safety caveats, and which product has human evidence.
What the evidence can support
These bands organize the labels already attached to published Atlas pages. They do not create a universal grade for the supplement or outcome.
Best supported
Human evidence is comparatively stronger for these published paths.
No published pilot path currently carries this label.
Useful, but incomplete
Human evidence exists, but certainty, population fit, or effect size remains limited.
Evidence is early
Treat these as uncertain or context-dependent rather than established uses.
Urolithin A is best understood as a mitophagy and muscle-aging compound, not a generic anti-aging pill. Its strongest commercial evidence is tied to Mitopure and human trials measuring mitochondrial biomarkers, endurance, and muscle function.
The buying question is therefore narrower than most supplement pages suggest: are you paying for the clinically studied Mitopure ingredient, or for a lower-cost generic urolithin A product where bioavailability equivalence is less certain? The comparisons below keep that distinction visible.
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