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Head-to-head evidence comparison — which supplement is right for you?
Curcumin wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
6 of 7 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
8 of 10 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both 5-HTP and Curcumin have evidence — compare verdict strength side-by-side.
50-100mg for sleep; 150-300mg for mood
For sleep: 30-45 minutes before bed, For mood: 2-3 divided doses with meals
Capsules
500-1000mg daily (enhanced form)
With fatty meal
Enhanced absorption form: Longvida, Meriva, or BCM-95
2-4 weeks
1-2 weeks
2-4 weeks
First 1-2 weeks
4-8 weeks
4-8 weeks
4-8 weeks
Immediate
Early pharmacological interventions for universal prevention of post-traumatic stress disorder (PTSD)
The Cochrane database of systematic reviews (2022) · Systematic review · n=2023
This review provides uncertain evidence only regarding the use of hydrocortisone, propranolol, dexamethasone, omega-3 fatty acids, gabapentin, paroxetine, PulmoCare formula, Oxepa formula, or 5-hydroxytryptophan as universal PTSD prevention strategies.
Combination pharmacotherapy for the treatment of fibromyalgia in adults
The Cochrane database of systematic reviews (2018) · Systematic review · n=1474
Two studies only reported any primary outcomes of interest (patient-reported pain relief of 30%, or 50%, or greater).
The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial
Nutrients (2025) · Rct · n=30
Results: A significant time effect was observed in the MoCA score, which was mainly explained by a significant increase in the 5-HTP group (week 0 vs. week 12: 26.6 ± 1.4 a.u. vs. 27.6 ± 1.4 a.u., p < 0.05).
Comparative Effectiveness of Nutritional Supplements in the Treatment of Knee Osteoarthritis: A Network Meta-Analysis
Nutrients (2025) · Meta analysis · n=4599
Bayesian rankings indicated Boswellia had the highest probability of being most effective for pain and stiffness, with krill oil and curcumin showing potential for function improvement.
Curcumin on Human Health: A Comprehensive Systematic Review and Meta-Analysis of 103 Randomized Controlled Trials
Phytotherapy research : PTR (2024) · Meta analysis · n=7216
We meta-analyzed the effect sizes across eligible studies using the random-effects model.
Comparative efficacy and tolerability of nutraceuticals for depressive disorder: A systematic review and network meta-analysis
Psychological medicine (2025) · Meta analysis · n=17437
Adjunctive nutraceuticals consistently showed better efficacy than antidepressants (ADT) alone in outcomes including SMD, remission, and response.
Limited evidence from small RCTs (n=30, n=166). Effectiveness constrained by mixed study populations and preliminary findings. Higher doses associated with increased nausea risk.
Based on meta-analyses of arthritis and osteoarthritis studies. Effectiveness varies significantly by curcumin form - enhanced bioavailability formulations may show greater effects at lower doses. Limited high-quality RCTs available.
AI-estimated from published studies. Interpret as directional guidance.
Curcumin has a higher evidence score (9/10 vs 8.5/10) and wins in 3 of 3 categories.
For support mood, 5-HTP has a higher relevance score (75 vs 70).
No known interactions between 5-HTP and Curcumin have been documented in our database. However, always consult a healthcare provider before combining supplements.