Based on independent third-party laboratory analysis
Category pass rate: ~80% of magnesium products passed independent laboratory testing. However, form accuracy is a MAJOR issue — some brands label one form but contain a different (cheaper) form.
Contamination risk: Low risk category. Heavy metals rarely an issue in mineral supplements at tested doses.
Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.