Supplements
Magnesium in supplements · page 195
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 195 of 209
E
EsophaCoolLife Extension · Tablet or Pill200 mg per servingS
Stress FreePlanetary Herbals · Tablet or Pill9.0 mg per servingS
Stress FreePlanetary Herbals · Tablet or Pill9.0 mg per servingS
Stress FreePlanetary Herbals · Tablet or Pill9.0 mg per servingI
Ionic Calcium 200 mgTrace Minerals Research · Liquid4.0 mg per servingI
Ionic Manganese 10 mgTrace Minerals Research · Liquid30 mg per servingA
Allergy Defense ProbioticProbiogen · Capsule25 mg per servingZ
Zeolite Enhanced With DHQGet Healthy Again · Liquid0.50 mg per servingC
Coral Calcium 1500 mgThe Vitamin Shoppe · Capsule180 mg per servingC
Coral Calcium 1500 mgThe Vitamin Shoppe · Capsule180 mg per servingC
Coral CalciumBotanic Choice · Capsule250 mg per servingM
Muscle Relax with Calcium LactateTerry Naturally · Capsule50 mg per servingC
Calcium & Magnesium Citrate Powder with Vitamin D3NOW · Powder400 mg per servingZ
ZMABodybuilding.com Signature · Capsule450 mg per servingC
Calcium Magnesium & ZincSundown · Other (e.g. tea bag)400 mg per servingM
Marine Based Cal-Mag 500/250 mgNature's Answer · Capsule250 mg per servingS
SeredynBioNeurix · Capsule14 mg per servingM
Magnesium Citrate Orange VanillaKAL · Gummy or Jelly83 mg per servingC
Coral CalciumNature's Sunshine · Capsule55 mg per servingB
ButyrEnAllergy Research Group · Capsule170 mg per servingR
Relax & SleepFuturebiotics · Tablet or Pill75 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).