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Head-to-head evidence comparison — which supplement is right for you?
Elderberry wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
5 of 5 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
10 of 15 studies with measurable effects showed benefit.
Top outcomes
600-900mg extract daily during illness
At first sign of symptoms, Multiple times daily during illness
Standardized extract (syrup or capsules)
99-500mg daily from supplements (food provides more)
With food to reduce GI upset, Spread throughout day, During/after exercise for athletes
Potassium Citrate or Potassium Gluconate
When taken at symptom onset
During illness
2-4 weeks
1-2 weeks
Long-term
With excess or kidney issues
Genus Sambucus: Exploring Its Potential as a Functional Food Ingredient with Neuroprotective Properties Mediated by Antioxidant and Anti-Inflammatory Mechanisms
International journal of molecular sciences (2024) · Systematic review
In vivo studies using animal models of neurodegenerative diseases, such as Alzheimer's and Parkinson's, have shown that Sambucus compounds can improve cognitive function, motor performance, and neuronal survival while attenuating neuroinflammation and oxidative damage.
Label compliance for ingredient verification: regulations, approaches, and trends for testing botanical products marketed for "immune health" in the United States
Critical reviews in food science and nutrition (2024) · Systematic review
Meanwhile, consumers showed increased attention to dietary supplement ingredient labels, especially concerning authenticity and ingredient claims.
Select Dietary Supplement Ingredients for Preserving and Protecting the Immune System in Healthy Individuals: A Systematic Review
Nutrients (2022) · Systematic review
Immune health products represent approximately 10% of all US dietary supplement sales.
Effect of changes in potassium intake on blood pressure: a dose–response meta-analysis of randomized clinical trials (2000–2024)
Clinical Kidney Journal (2025) · Meta analysis · n=2500
Dose-response analysis of RCTs from 2000-2024
Magnesium and Potassium Supplementation for Systolic Blood Pressure Reduction in the General Normotensive Population: A Systematic Review and Subgroup Meta-Analysis for Optimal Dosage and Treatment Length
Nutrients (2024) · Meta analysis
Both supplements demonstrated greater reductions in SBP for the general population at lower dosages and longer treatment durations.
Sex-specific associations between sodium and potassium intake and overall and cause-specific mortality: a large prospective U.S. cohort study, systematic review, and updated meta-analysis of cohort studies
BMC medicine (2024) · Meta analysis · n=237036
Meta-analysis examining Potassium efficacy
Based on limited studies showing 2-4 day reduction in illness duration. Evidence primarily from small RCTs with methodological limitations. Effectiveness may vary significantly between individuals.
AI-estimated from published studies. Interpret as directional guidance.
Elderberry has a higher evidence score (6/10 vs 8.5/10) and wins in 2 of 3 categories.
For reduce inflammation, Potassium has a higher relevance score (85 vs 55).
No known interactions between Elderberry and Potassium have been documented in our database. However, always consult a healthcare provider before combining supplements.