Everything DoseRank tracks on the calcium & magnesium shelf — Magnesium Bisglycinate. The category itself is never ranked: 222 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing calcium & magnesium supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Magnesium statusBiochemical sufficiency of magnesium.168 rankedStrong
Kidney stone riskLikelihood of nephrolithiasis formation or recurrence.178 rankedModerate-strong
Gastroesophageal reflux or heartburnReflux symptoms causing burning or discomfort.111 rankedStrong
Bone mineral densityMeasure of bone strength and mineralization.162 rankedStrong
Arrhythmia occurrenceAbnormal heart rhythm episodes.18 rankedLimited
Fracture riskLikelihood of bone fracture.175 rankedStrong
Migraine severityFrequency, duration, or intensity of migraine episodes.167 rankedStrong
Bone turnover markersBiochemical indicators of bone formation and resorption.151 rankedStrong
Calcium statusAdequacy of calcium availability or stores.175 rankedStrong
All-cause mortalityDeath from any cause; lowest-level hard clinical outcome.90 rankedModerate-strong
Muscle crampsPainful involuntary muscle contractions.175 rankedModerate-strong
Vitamin D statusBiochemical sufficiency of vitamin D.125 rankedStrong
TolerabilityOverall ability to continue the intervention without unacceptable side effects.22 rankedModerate-strong
Sleep qualityOverall restfulness and perceived quality of sleep.140 rankedLimited
Fall riskLikelihood of falling due to instability or weakness.108 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best calcium & magnesium supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 222 products against that goal's trials.