Supplements
Magnesium in supplements · page 163
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 163 of 209
S
Sleep SupportPathway To Healing · Capsule125 mg per servingC
Candi-TrolDouglas Laboratories · Tablet or Pill30 mg per servingG
GlucostasisOL Olympian Labs · Capsule75 mg per servingW
Whey Isolate TangerineCytoSport · Liquid0.00 NP per servingL
L-ToxMM Sports Nutrition · Capsule100 mg per servingA
Alkaline MineralspHion Balance · Powder253 mg per servingI
Intra-Aid Citrus BurstUniversal Nutrition · Powder50 mg per servingL
Love Your HeartRenew Life · Capsule50 mg per servingA
At Ease PMRedd Remedies · Capsule50 mg per servingA
At Ease PMRedd Remedies · Capsule50 mg per servingK
Knock-OutSchiff · Tablet or Pill10 mg per servingP
Postlift StrawberryNutrex Research Clinical Edge · Powder16 mg per servingP
Postlift Blackberry LemonadeNutrex Research Clinical Edge · Powder16 mg per servingP
PEVArxInnovus Pharmaceuticals · Capsule8.0 mg per servingE
ElectrolytesGNC Beyond Raw Chemistry Labs · Powder30 mg per servingO
Ortho C+ Lemon FlavorAOR Advanced Orthomolecular Research Premium · Powder340 mg per servingE
EZ FlexMetagenics · Tablet or Pill50 mg per servingH
HerSynergyMetagenics · Tablet or Pill50 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).