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Head-to-head evidence comparison — which supplement is right for you?
Probiotics wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
30 of 39 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
10-20 billion CFU
With or without food (strain-dependent), Same time daily for consistency
Capsules with multiple strains
500-1000mg
Morning with food
Mitopure (highly pure, bioavailable form)
2-4 weeks
4-8 weeks
4-8 weeks
First 1-2 weeks
4-8 weeks
8-16 weeks
8-16 weeks
Preventive Effect of Probiotics on Oral Mucositis Induced by Cancer Treatment: A Systematic Review and Meta-Analysis
International journal of molecular sciences (2022) · Meta analysis · n=708
Three trials using Lactobacilli-based probiotics reported that the incidence of oral mucositis in the probiotic group was significantly low (risk ratio [RR] = 0.84, 95% confidence interval [CI] = 0.77−0.93, p = 0.0004).
Probiotics for treating acute infectious diarrhoea
The Cochrane database of systematic reviews (2020) · Meta analysis · n=12127
Effect size was similar in the sensitivity analysis and marked heterogeneity persisted.
Probiotics for the prevention of Clostridium difficile-associated diarrhea in adults and children
The Cochrane database of systematic reviews (2017) · Meta analysis · n=9955
A complete case analysis (i.e. participants who completed the study) among trials investigating CDAD (31 trials, 8672 participants) suggests that probiotics reduce the risk of CDAD by 60%.
The effect of a high-polyphenol Mediterranean diet (Green-MED) combined with physical activity on age-related brain atrophy: the Dietary Intervention Randomized Controlled Trial Polyphenols Unprocessed Study (DIRECT PLUS)
The American journal of clinical nutrition (2022) · Rct · n=284
Among 284 participants (88% men; mean age: 51 y; BMI: 31.2 kg/m2; APOE-ε4 genotype = 15.7%), 224 (79%) completed the trial with eligible whole-brain MRIs.
Urolithin A induces mitophagy and prolongs lifespan
Nature Medicine (2016) · Preclinical
Extended lifespan in animal models
Effect of the mitophagy inducer urolithin A on age-related immune decline: a randomized, placebo-controlled trial
Nature aging (2025) · Rct · n=50
Exploratory single-cell RNA sequencing demonstrated UA-driven transcriptional shifts across immune populations, modulating pathways linked to inflammation and metabolism.
Based on meta-analyses showing benefits for IBS and digestive symptoms. Effect sizes varied considerably between studies with low to very low certainty of evidence. Initial GI symptoms common when starting but typically resolve within 1-2 weeks.
Based on 3 RCTs (n=88, n=66, n=20) showing improvements in muscle endurance and strength. Effects observed primarily in middle-aged and older adults over 8-16 weeks. Studies used synthetic urolithin A forms with high bioavailability.
AI-estimated from published studies. Interpret as directional guidance.
Probiotics has a higher evidence score (9/10 vs 6/10) and wins in 2 of 3 categories.
For reduce inflammation, Probiotics has a higher relevance score (95 vs 50).
No known interactions between Probiotics and Urolithin A have been documented in our database. However, always consult a healthcare provider before combining supplements.