Everything DoseRank tracks on the magnesium shelf — Magnesium Bisglycinate. The category itself is never ranked: 1.2k 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 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.941 rankedStrong
Sleep qualityOverall restfulness and perceived quality of sleep.925 rankedModerate-strong
Migraine severityFrequency, duration, or intensity of migraine episodes.863 rankedModerate-strong
Muscle crampsPainful involuntary muscle contractions.920 rankedModerate-strong
TolerabilityOverall ability to continue the intervention without unacceptable side effects.204 rankedModerate-strong
Insulin sensitivityEfficiency of tissue response to insulin.726 rankedStrong
ConstipationInfrequent, difficult, or hard bowel movements.675 rankedStrong
Anxiety symptomsWorry, tension, fear, or related anxiety manifestations.506 rankedStrong
Blood pressureArterial pressure; direction of benefit depends on baseline status.979 rankedStrong
Gastroesophageal reflux or heartburnReflux symptoms causing burning or discomfort.263 rankedModerate-strong
Arrhythmia occurrenceAbnormal heart rhythm episodes.78 rankedLimited
Pain intensitySeverity of pain regardless of body site.169 rankedStrong
Premenstrual symptom severityBurden of PMS-related mood or physical symptoms.255 rankedModerate-strong
Electrolyte balancePhysiologic balance of sodium, potassium, and related ions.57 rankedStrong
Hydration statusAdequacy of body water and fluid balance.132 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best magnesium supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 1.2k products against that goal's trials.