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Head-to-head evidence comparison — which supplement is right for you?
MCT Oil vs Potassium: MCT Oil has the stronger overall evidence (6 vs 8.5/10); they're alternatives for boost daily energy — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
MCT Oil wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
3 of 3 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
9 of 14 studies with measurable effects showed benefit.
Top outcomes
1-3 tablespoons (15-45ml) daily
Morning for sustained energy, Before workouts for performance, With coffee (bulletproof style)
C8 (Caprylic Acid) MCT Oil
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
30-60 minutes
30-60 minutes
Acute
Acute with excess
2-4 weeks
1-2 weeks
Long-term
With excess or kidney issues
Clinical Benefits of Exogenous Ketosis in Adults with Disease: A Systematic Review
Nutrients (2025) · Systematic review
Exogenous ketosis shows potential in neurological, metabolic, and cardiovascular disorders, while evidence in psychiatric and inflammatory conditions remains scarce and preliminary.
AMPA Receptor Modulation Through Medium-Chain Triglycerides and Decanoic Acid Supports Nutritional Intervention in Pediatric Epilepsy
Nutrients (2025) · Systematic review
Methods: A systematic review was conducted, including articles from January 2000 to January 2025, to explore the potential role of medium-chain triglyceride (MCT) add-on to classic KD and as MCT supplementation in free diets in the management of pediatric drug-resistant epilepsy (DRE).
Influence of Carbohydrate Intake on Caprylic Acid (C8:0)-Induced Ketogenesis-A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis
Forest plot analysis showed heterogeneous data.
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 meta-analysis of 291 participants showing MCT decreases energy intake. Effect magnitude limited by small study sizes and heterogeneous methodology. GI tolerance varies significantly between individuals.
AI-estimated from published studies. Interpret as directional guidance.
MCT Oil has a higher evidence score (6/10 vs 8.5/10) and wins in 2 of 3 categories.
For boost daily energy, MCT Oil has a higher relevance score (75 vs 50).
No known interactions between MCT Oil and Potassium 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.