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Head-to-head evidence comparison — which supplement is right for you?
Icosapent Ethyl (Vascepa) vs Nicotinamide Riboside: Nicotinamide Riboside has the stronger overall evidence (5.5 vs 4.2/10); they're alternatives for support heart health — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Nicotinamide Riboside wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
2 of 2 studies with measurable effects showed benefit.
Top outcomes
Approved dose is 2 g twice daily (4 g/day total) taken with food, under a clinician, for statin-treated adults with elevated triglycerides and high cardiovascular risk. A prescription drug — not a self-directed regimen.
with-meals
Oral capsule — purified EPA ethyl ester (icosapent ethyl)
300–500 mg daily
Morning with breakfast, Split dosing (morning and midday) for doses above 500 mg
Nicotinamide Riboside Chloride capsules or powder
Months to years
Weeks
Weeks to months
Throughout use
1–2 weeks
4–8 weeks
8–16 weeks
4–8 weeks
Cardiovascular Risk Reduction with Icosapent Ethyl for Hypertriglyceridemia.
The New England journal of medicine (2019) · Rct · n=8179
REDUCE-IT: 8,179 statin-treated patients with elevated triglycerides and high cardiovascular risk
Effects of Icosapent Ethyl on Total Ischemic Events: From REDUCE-IT.
Journal of the American College of Cardiology (2019) · Rct · n=8179
REDUCE-IT secondary analysis of total (first plus recurrent) ischemic events
Eicosapentaenoic acid ethyl ester (AMR101) therapy in patients with very high triglyceride levels (from the MARINE trial).
The American journal of cardiology (2011) · Rct
MARINE: randomized, placebo-controlled trial in patients with very high triglycerides (≥500 mg/dL)
The Effect of Nicotinamide Mononucleotide and Riboside on Skeletal Muscle Mass and Function: A Systematic Review and Meta-Analysis.
Journal of cachexia, sarcopenia and muscle (2025) · Meta analysis
Systematic review and meta-analysis of RCTs evaluating NMN and NR effects on skeletal muscle mass and function
NAD+ supplementation for anti-aging and wellness: A PRISMA-guided systematic review of preclinical and clinical evidence.
Ageing research reviews (2026) · Systematic review
PRISMA-guided systematic review of both preclinical and clinical NAD+ supplementation literature
NAD+ therapy in age-related degenerative disorders: A benefit/risk analysis.
Experimental gerontology (2020) · Systematic review
Systematic review of 147 articles (113 preclinical, 34 clinical) on NAD+ precursor therapy
Based on 8-week RCT showing dose-dependent increases of 22%, 51%, and 142% at 100, 300, and 1000mg respectively. Individual response varies significantly (30% show variable response). NR-SAFE trial confirmed safety up to 2000mg.
AI-estimated from published studies. Interpret as directional guidance.
Nicotinamide Riboside has a higher evidence score (5.5/10 vs 4.2/10) and wins in 3 of 3 categories.
For support heart health, Icosapent Ethyl (Vascepa) has a higher relevance score (72 vs 62).
No known interactions between Icosapent Ethyl (Vascepa) and Nicotinamide Riboside have been documented in our database. However, always consult a healthcare provider before combining supplements.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.