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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
Mostly mechanism / observational
Top outcomes
Verdict
Likely helps
30 of 39 studies with measurable effects showed benefit.
Top outcomes
220-1500mg standardized extract daily (often 1100mg in GAD trials), or 1-4 cups of tea
evening
Standardized extract (1.2% apigenin)
10-20 billion CFU
With or without food (strain-dependent), Same time daily for consistency
Capsules with multiple strains
2-8 weeks
2-4 weeks
Acute-2 weeks
Acute
2-4 weeks
4-8 weeks
4-8 weeks
First 1-2 weeks
Therapeutic efficacy and safety of chamomile for state anxiety, generalized anxiety disorder, insomnia, and sleep quality: A systematic review and meta-analysis of randomized trials and quasi-randomized trials.
Phytotherapy research : PTR (2019) · Meta analysis
Reduced anxiety symptoms versus control
Effects of chamomile (Matricaria chamomilla L.) on sleep: A systematic review and meta-analysis of clinical trials.
Complementary therapies in medicine (2024) · Meta analysis
Improved subjective sleep quality
Medicinal herbs for the treatment of anxiety: A systematic review and network meta-analysis.
Pharmacological research (2022) · Meta analysis
Chamomile was not significantly different from placebo for anxiety (MD 0.54, 95% CrI -5.13 to 6.25)
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%.
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.
AI-estimated from published studies. Interpret as directional guidance.
Probiotics has a higher evidence score (9/10 vs 5.2/10) and wins in 2 of 3 categories.
For reduce anxiety & stress, Chamomile has a higher relevance score (75 vs 52).
No known interactions between Chamomile and Probiotics have been documented in our database. However, always consult a healthcare provider before combining supplements.