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Head-to-head evidence comparison — which supplement is right for you?
Omega-3 vs White Willow Bark: Omega-3 has the stronger overall evidence (9 vs 6/10); they're alternatives for joint health & mobility — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Omega-3 wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Probably helps
10 of 15 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
1 of 1 studies with measurable effects showed benefit.
Top outcomes
2-3g combined EPA+DHA daily (a typical label dose, not the dose used in the cited trials, which gave 1 g or 3.25 g of omega-3 a day, or 1 to 4 g of fish oil a day without stating its EPA+DHA content)
With meals containing fat
Triglyceride form fish oil
120-240mg salicin daily (from standardized extract)
With meals, Divided doses
Standardized extract (15% salicin)
4-8 weeks
2-4 weeks
Immediate
4-12 weeks
1-2 weeks
1-4 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
12 RCTs with 587 subjects: omega-3 supplementation increased serum BDNF versus placebo (SMD 0.72, 95% CI 0.28 to 1.15), with high heterogeneity (I2 = 84.39%).
Efficacy and Safety of White Willow Bark (Salix alba) Extracts
Phytotherapy research : PTR (2015) · Review
In recent years, various in vitro and animal studies have demonstrated that the anti-inflammatory activity of willow bark extract is associated with down regulation of the inflammatory mediators tumor necrosis factor-α and nuclear factor-kappa B.
A systematic review on the effectiveness of willow bark for musculoskeletal pain
Phytotherapy research : PTR (2009) · Systematic review
Seven manuscripts reporting four confirmatory and four exploratory trials.
The historical analysis of aspirin discovery, its relation to the willow tree and antiproliferative and anticancer potential
Cell proliferation (2006) · Review
For several millennia, the willow tree and salicin have been associated with salicylic acid, the key precursor molecule that has contributed to the discovery of acetylsalicylic acid, traded as aspirin.
The points are the dose bands of a meta-analysis of 10 randomised trials with 1,426 adults (PMID 37028202): EPA-rich products at 1 to under 2 g of EPA a day reduced depression severity (SMD -0.43), while 2 g a day or more did not (SMD -0.20, not significant), so the 2 g point is plotted as no effect. Doses are grams of EPA, not EPA plus DHA. The Cochrane review of 33 placebo-controlled trials found a small to modest effect, unlikely to be clinically meaningful and rated very low certainty, with no difference in remission or response (PMID 34817851). No trial compared doses directly.
The Cochrane review of herbal medicine for low back pain found that willow bark extract standardised to 120 or 240 mg salicin a day is probably better than placebo for short-term pain and rescue medication (two trials, 261 participants, moderate-quality evidence), with no significant adverse events (PMID 25536022). A systematic review of the same trials reports a dose-dependent analgesic effect, which is why 240 mg sits above 120 mg, with all studies at up to 240 mg salicin for up to 6 weeks and only minor adverse events (PMID 19140170). A general musculoskeletal pain curve was removed: in osteoarthritis the trials conflict, including a 2-week trial at 240 mg with a moderate effect (PMID 11406860), and no cited trial tested a second dose.
AI-estimated from published studies. Interpret as directional guidance.
Omega-3 has a higher evidence score (9/10 vs 6/10) and wins in 3 of 3 categories.
For joint health & mobility, White Willow Bark has a higher relevance score (88 vs 75).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
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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.