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Head-to-head evidence comparison — which supplement is right for you?
Pomegranate vs Potassium: Potassium has the stronger overall evidence (8.5 vs 5.6/10); 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.
Potassium wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Too few graded studies
Top outcomes
Verdict
Probably helps
2 of 3 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Pomegranate and Potassium have evidence — compare verdict strength side-by-side.
~500-1000mg pomegranate extract (standardized to ellagic acid/punicalagins) or ~250-500ml juice daily. These are typical label doses. The cited studies are reviews and do not state a trial dose.
With meals
Standardized extract
Supplements commonly provide 99 mg per serving, and food provides more (no cited trial states the dose it used). No upper limit is established, so no maximum is stored. That is not a statement that larger amounts are safe.
With food to reduce GI upset, Spread throughout day, During/after exercise for athletes
Potassium Citrate or Potassium Gluconate
and 10 more not shown
4-12 weeks
4-12 weeks
Throughout use
2-4 weeks
1-2 weeks
Long-term
With excess or kidney issues
Does pomegranate consumption improve oxidative stress? A systematic review and meta-analysis of randomized controlled clinical trials.
Clinical nutrition ESPEN (2022) · Meta analysis
Systematic review and meta-analysis of 21 randomised controlled trials of pomegranate and oxidative-stress markers
Lipid profile changes after pomegranate consumption: A systematic review and meta-analysis of randomized controlled trials.
Phytomedicine : international journal of phytotherapy and phytopharmacology (2016) · Meta analysis · n=545
Meta-analysis of 12 randomised placebo-controlled trials (13 treatment arms, 545 participants)
Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials.
Journal of the International Society of Sports Nutrition (2021) · Meta analysis
Meta-analysis of 118 studies of foods rich in nitrate, polyphenols, L-arginine or L-citrulline, measuring endurance exercise performance, not vascular function
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
Our meta-analysis included 10 RCTs, comprising 4 studies on subjects without hypertension and 6 studies on subjects with hypertension.
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=416104
Prospective analysis of 237,036 men and 179,068 women in the NIH-AARP Diet and Health Study, plus an updated meta-analysis of cohort studies.
Potassium has a higher evidence score (8.5/10 vs 5.6/10) and wins in 2 of 3 categories.
For support heart health, Potassium has a higher relevance score (68 vs 20).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.