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Head-to-head evidence comparison — which supplement is right for you?
Omega-3 vs Thiamine: Omega-3 has the stronger overall evidence (9 vs 7.5/10); they're alternatives for support mood — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Omega-3 wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Probably helps
18 of 27 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
7 of 12 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Omega-3 and Thiamine have evidence — compare verdict strength side-by-side.
2-3g combined EPA+DHA daily
With meals containing fat
Triglyceride form fish oil
50-100mg daily; 150-600mg benfotiamine for neuropathy
With food, Morning with other B vitamins
Benfotiamine (fat-soluble, higher bioavailability)
4-8 weeks
2-4 weeks
Immediate
4-12 weeks
2-4 weeks
4-8 weeks
4-12 weeks
Marine n-3 Fatty Acids and Prevention of Cardiovascular Disease and Cancer
The New England journal of medicine (2019) · Rct · n=25871
During a median follow-up of 5.3 years, a major cardiovascular event occurred in 386 participants in the n-3 group and in 419 in the placebo group (hazard ratio, 0.92; 95% confidence interval [CI], 0.80 to 1.06; P=0.24).
Omega-3 fatty acids for intermittent claudication
The Cochrane database of systematic reviews (2024) · Meta analysis · n=1830
Omega-3 compared with a control may have little to no effect on ankle-brachial index (MD -0.02, 95% CI -0.08 to 0.04; 3 studies, 168 participants; very low-certainty evidence).
A systematic review and meta-analysis of the omega-3 fatty acids effects on brain-derived neurotrophic factor (BDNF)
Nutritional neuroscience (2024) · Meta analysis · n=587
The present systematic review and meta-analysis indicate the efficacy of omega-3 FAs in increasing the serum concentration of BDNF.
Dietary supplements for dysmenorrhoea
The Cochrane database of systematic reviews (2016) · Meta analysis · n=3101
Supplements versus other supplementsThere was no evidence of a difference in effectiveness between ginger and zinc sulphate (MD 0.02 points, 95% CI -0.58 to 0.62; one RCT, 101 women).
Evaluation of the Efficacy of the Addition of a Combination of Pyrimidine Nucleotides and Vitamin B1 and B12 to Standard Treatment in the Management of Painful Radiculopathy and in the Quality of Life of Patients
Nutrients (2024) · Rct · n=122
Both groups showed pain improvement, but the VAS reduction (control: 24.58 vs. experimental: 31.35) was not statistically significant.
Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials
Nutritional neuroscience (2023) · Systematic review · n=2256
Systematic review examining Thiamine efficacy
Based on multiple meta-analyses showing EPA-dominant formulas >1g/day most effective. Effects plateau around 2-2.5g. Adjunctive use with antidepressants shows better outcomes than monotherapy.
Based on limited RCT evidence showing VAS pain reduction with B-vitamin combinations. Effect magnitude conservative due to mixed statistical significance. Higher bioavailability forms like benfotiamine likely more effective than standard thiamine HCl.
AI-estimated from published studies. Interpret as directional guidance.
Omega-3 has a higher evidence score (9/10 vs 7.5/10) and wins in 2 of 3 categories.
For support mood, Omega-3 has a higher relevance score (88 vs 48).
No known interactions between Omega-3 and Thiamine have been documented in our database. However, always consult a healthcare provider before combining supplements.
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The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.