Supplements
Magnesium in supplements · page 175
10,004 supplements on the U.S. market list Magnesium with an amount per serving. The official Tolerable Upper Intake Level for adults is 350 mg a day (supplemental magnesium only (not magnesium in food)).
Tolerable Upper Intake Level (UL)
The highest daily amount that is unlikely to cause harm for almost all healthy people; it applies to supplemental magnesium only (not magnesium in food).
| Age | Men | Women |
|---|---|---|
| 0-6 months | — | — |
| 7-12 months | — | — |
| 1–3 years | 65 mg | 65 mg |
| 4–8 years | 110 mg | 110 mg |
| 9–13 years | 350 mg | 350 mg |
| 14–18 years | 350 mg | 350 mg |
| 19–30 years | 350 mg | 350 mg |
| 31–50 years | 350 mg | 350 mg |
| 51+ years | 350 mg | 350 mg |
Source: NIH ODS Magnesium Fact Sheet for Health Professionals, Table 3 (updated 2026-01-06).
Supplements with Magnesium
10,004 shown · page 175 of 209
B
Bone Builder CapsulesEthical Nutrients · Capsule33 mg per servingT
Target-Mins Cal-Mag Mini-Tabs 500 mg/250 mgCountry Life · Tablet or Pill250 mg per servingA
AB Cal Mag+AB American Biologics · Capsule250 mg per servingC
Cocoa Cal MagDaVinci Laboratories Of Vermont · Tablet or Pill250 mg per servingC
C-Care PowderKaruna · Powder300 mg per servingN
Natural CALM plus Calcium Raspberry-Lemon FlavorNatural Vitality · Powder179 mg per servingN
Natural CALM plus CalciumNatural Vitality · Powder196 mg per servingC
Coral Complex 3Coral · Capsule168 mg per servingS
Stim-Elite WatermelonBPI · Powder12 mg per servingLabel data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).