Supplements
Magnesium in supplements · page 178
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 178 of 209
M
Mineral2O PowderPure Encapsulations · Powder150 mg per servingL
Laxative-3 BlendNature's Way · Tablet or Pill722 mg per servingR
Relora CalmThe Vitamin Shoppe · Capsule100 mg per serving5
5-HTP (Griffonia Simplicifolia Extract) 100 mgWindmill · Capsule25 mg per servingF
FibroplexMetagenics · Tablet or Pill150 mg per servingM
MetaRelax Orange Citrus FlavorMetagenics · Powder150 mg per servingC
Cal-Snack Calcium Magnesium Vanilla Orange FlavorCountry Life · Other (e.g. tea bag)500 mg per servingC
Cal-Snack Calcium Magnesium Vanilla Orange FlavorCountry Life · Other (e.g. tea bag)500 mg per servingA
Ascorbyl-C + BioflavonoidsGenestra Brands · Capsule8.3 mg per servingL
Liquid Calcium Magnesium Citrate with Vitamin D3 Natural Blueberry FlavorSolgar · Liquid300 mg per servingL
Liquid Calcium Magnesium Citrate with Vitamin D3 Natural Orange-Vanilla FlavorSolgar · Liquid300 mg per servingL
Liquid Calcium Magnesium Citrate with Vitamin D3 Natural Strawberry FlavorSolgar · Liquid300 mg per servingS
SaltStick ElixalyteSaltStick · Liquid8.0 mg per servingL
Liqui-CalMBi Nutraceuticals · Liquid600 mg per servingC
Celery PowerGarden Greens · Powder120 mg per servingA
Ascorbplex 1000Douglas Laboratories · Tablet or Pill0.40 mg per servingF
Fast-C and Bio-Quercetin PhytosomeLife Extension · Tablet or Pill8.0 mg per servingM
Max SleepNova 3 Labs · Capsule150 mg per servingP
Pickleball CocktailJigsaw Health · Powder50 mg per servingP
PMS Nutritional SupportNutriCology · Capsule50 mg per servingT
Target-Mins Calcium Magnesium Complex With Vitamin D3Country Life · Tablet or Pill500 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).