United States
Data
Supplements

Magnesium in supplements · page 207

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).

AgeMenWomenPregnancyBreastfeeding
0-6 months————
7-12 months————
1–3 years65 mg65 mg——
4–8 years110 mg110 mg——
9–13 years350 mg350 mg——
14–18 years350 mg350 mg350 mg350 mg
19–30 years350 mg350 mg350 mg350 mg
31–50 years350 mg350 mg350 mg350 mg
51+ years350 mg350 mg——

Source: NIH ODS Magnesium Fact Sheet for Health Professionals, Table 3 (updated 2026-01-06).

Supplements with Magnesium

10,004 shown · page 207 of 209

M
Magnesium Oxide 400 mgThe Vitamin Shoppe · Capsule400 mg per serving
M
Magnesium (Citrate/Malate)Pure Encapsulations · Capsule120 mg per serving
M
Magnesium Oxide 400 mgRugby · Tablet or Pill240 mg per serving
N
Natural Magnesium 27 mgRugby · Tablet or Pill27 mg per serving
M
Magnesium (Citrate)Pure Encapsulations · Capsule150 mg per serving
M
Magnesium Oxide 400 mgMajor · Tablet or Pill240 mg per serving
M
Magnesium Glycinate 400 mgThe Vitamin Shoppe · Tablet or Pill400 mg per serving
M
Magnesium Glycinate 400 mgThe Vitamin Shoppe · Tablet or Pill400 mg per serving
M
Magnesium Oxide 400 mgMajor Pharmaceuticals · Tablet or Pill240 mg per serving
M
Magnesium 200 mgSwanson · Capsule400 mg per serving
T
Triple Magnesium Complex 400 mgSwanson · Capsule400 mg per serving
C
Chelated Magnesium 133 mgSwanson · Capsule133 mg per serving
M
Magnesium Citrate 225 mg Super StrengthSwanson · Tablet or Pill225 mg per serving
C
Chelated Magnesium 270 mgAmazon Elements · Tablet or Pill270 mg per serving
M
Magnesium Citrate 200 mgThe Vitamin Shoppe · Tablet or Pill200 mg per serving
M
Magnesium Citrate 200 mgThe Vitamin Shoppe · Tablet or Pill200 mg per serving
M
Magnesium Glycinate 400 mgThe Vitamin Shoppe · Tablet or Pill400 mg per serving
M
Magnesium (Glycinate)Pure Encapsulations · Capsule120 mg per serving
M
Maxicloruro Magnesium Chloride Peppermint AddedMaxiProductos · Powder117 mg per serving
I
Ionic MagnesiumVinco · Liquid0.89 mg per serving
C
Chelated Magnesium 250 mgSimple Truth · Tablet or Pill250 mg per serving
M
Magnesium Glycinate 400 mgThe Vitamin Shoppe · Tablet or Pill400 mg per serving
C
Calcium MagnesiumNature's Bounty · Other (e.g. tea bag)250 mg per serving
C
Chelated Calcium And MagnesiumSundown Naturals · Tablet or Pill250 mg per serving
M
Mag-BeDouglas Laboratories · Capsule64 mg per serving
C
Calcigard One-To-OneDouglas Laboratories · Tablet or Pill250 mg per serving
M
Magnesium Orotate 775LifeLink · Tablet or Pill56 mg per serving
C
Cal-MagWhole Foods · Capsule500 mg per serving
M
Magnesium Aspartate 2XDouglas Laboratories · Tablet or Pill200 mg per serving
M
Magnesium Potassium AspartateThe Vitamin Shoppe · Tablet or Pill100 mg per serving
M
Magnesium Potassium AspartateThe Vitamin Shoppe · Tablet or Pill100 mg per serving
M
Magnesium Malate 400 mgThompson · Tablet or Pill400 mg per serving
C
CortiXMM Sports Nutrition · Capsule50 mg per serving
I
IntestoneR-U-Ved · Capsule15 mg per serving
T
Total Body Rapid CleanseRenew Life · Capsule230 mg per serving
R
Reacted MagnesiumOrtho Molecular Products · Capsule235 mg per serving
R
Reacted MagnesiumOrtho Molecular Products · Capsule235 mg per serving
R
Reacted MagnesiumOrtho Molecular Products · Capsule235 mg per serving
M
Magnesium Bis-Glycinate 200 mgBIOVEA · Capsule200 mg per serving
M
Magnesium Malate 500 mgSeeking Health · Powder500 mg per serving
L
Laxative Magnesium 500 mgEquate · Other (e.g. tea bag)500 mg per serving
M
Magnesium 250 mgNature Made · Tablet or Pill250 mg per serving
M
Magnesium 250 mgNature Made · Tablet or Pill250 mg per serving
M
Magnesium Oxide 400 mgReliable 1 Laboratories · Tablet or Pill240 mg per serving
C
Chelated Calcium MagnesiumVitamin World · Unknown250 mg per serving
C
Calcium Mag CitrateVitamin World · Other (e.g. tea bag)500 mg per serving
O
Organic Cal-MagBio-Nutrient · Tablet or Pill250 mg per serving
K
KELA SLife Zone · Capsule125 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).