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Head-to-head evidence comparison — which supplement is right for you?
Cinnamon vs Magnesium: Magnesium has the stronger overall evidence (8.5 vs 6.8/10); they're alternatives for pms relief — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Magnesium wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
10 of 13 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Cinnamon and Magnesium have evidence — compare verdict strength side-by-side.
1000-6000mg (1-6g) cinnamon powder daily, or 250-500mg standardized extract; prefer Ceylon for regular use
with-meals
Ceylon cinnamon powder or standardized aqueous extract
200-350mg elemental magnesium daily
Evening for sleep/relaxation (glycinate), Morning for energy (malate), Anytime (citrate)
Depends on goal - see notes
and 4 more not shown
4-12 weeks
4-12 weeks
8-12 weeks
8-12 weeks
1-2 weeks
1-2 weeks
1 week
Immediate
The effect of cinnamon supplementation on glycemic control in patients with type 2 diabetes mellitus: An updated systematic review and dose-response meta-analysis of randomized controlled trials
Phytotherapy research : PTR (2024) · Meta analysis
Significant reduction in fasting blood sugar (SMD −1.32; 95% CI −1.77 to −0.87; p<0.001)
Effects of cinnamon supplementation on metabolic biomarkers in individuals with type 2 diabetes
Nutrition reviews (2025) · Meta analysis
Improvements in glycemic and lipid biomarkers reported
Efficacy and safety of cinnamon in type 2 diabetes mellitus and pre-diabetes patients: A meta-analysis and meta-regression
Diabetes research and clinical practice (2019) · Meta analysis
Significant reduction in fasting blood glucose
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
Hypertension (2025) · 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.
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.
AI-estimated from published studies. Interpret as directional guidance.
Magnesium has a higher evidence score (8.5/10 vs 6.8/10) and wins in 3 of 3 categories.
For pms relief, Magnesium has a higher relevance score (88 vs 48).
No known interactions between Cinnamon and Magnesium have been documented in our database. However, always consult a healthcare provider before combining supplements.
Berberine, inositol, magnesium vs the cinnamon/chromium hype — and the med-interaction warning.
The honest tier list — proven staples vs situational vs mostly marketing. The hub the other guides feed into.
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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.