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Head-to-head evidence comparison — which supplement is right for you?
MCT Oil wins 1 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Probably helps
9 of 13 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
2 of 2 studies with measurable effects showed benefit.
Top outcomes
200-350mg elemental magnesium daily
Evening for sleep/relaxation (glycinate), Morning for energy (malate), Anytime (citrate)
Depends on goal - see notes
1-3 tablespoons (15-45ml) daily
Morning for sustained energy, Before workouts for performance, With coffee (bulletproof style)
C8 (Caprylic Acid) MCT Oil
1-2 weeks
1-2 weeks
1 week
Immediate
30-60 minutes
30-60 minutes
Acute
Acute with excess
Magnesium supplementation in pregnancy
The Cochrane database of systematic reviews (2014) · Meta analysis · n=9090
Women receiving magnesium were significantly less likely to require hospitalisation during pregnancy (RR 0.65, 95% CI 0.48 to 0.86; three trials, 1158 women).Of the 10 trials included in the review, only two were judged to be of high quality overall.
Magnesium Supplementation and Blood Pressure: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=2709
38 RCTs with 2709 participants analyzed
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.
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.
Based on meta-analysis of 38 RCTs with 2709 participants showing -7.68 mmHg reduction in hypertensive individuals. Effects are greatest in those with hypomagnesemia. Limited evidence in normotensive populations.
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 (9/10 vs 8.5/10) and wins in 1 of 3 categories.
Both Magnesium and MCT Oil score equally (70) for sharpen focus.
No known interactions between Magnesium and MCT Oil have been documented in our database. However, always consult a healthcare provider before combining supplements.