Supplements
Magnesium in supplements · page 185
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 185 of 209
A
Advanced Muscle EaseAOR Advanced Orthomolecular Research Advanced · Capsule200 mg per servingM
Magnesium Soft Chews Orange Cream FlavorHealthy Delights Naturals · Other (e.g. tea bag)100 mg per servingC
Calcium Magnesium plus BoronSolgar · Tablet or Pill400 mg per servingZ
ZMA with TheanineTrue Athlete · Capsule300 mg per servingM
Melatonin ComplexSuperiorLabs · Capsule50 mg per servingF
Flora 3LaneInnovative · Capsule3.0 mg per servingB
Buffered C CapsulesNatural Healthy Concepts · Capsule100 mg per servingB
Buffered Lemon C PowderNatural Healthy Concepts · Powder350 mg per servingE
Effer-CDouglas Laboratories · Powder125 mg per servingN
Neuro ComfortDouglas Laboratories · Capsule95 mg per servingC
Corvalen M RiboseDouglas Laboratories · Powder40 mg per servingB
Buffered Vitamin C PowderAllergy Research Group · Powder107 mg per servingB
Buffered Vitamin C PowderNutriCology · Powder107 mg per servingF
FibronolNutriCology · Capsule6.0 mg per servingK
Keto FireAncient Nutrition · Capsule103 mg per serving
Label 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).