United States
Data
Supplements

Magnesium in supplements · page 177

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 177 of 209

K-Mag C, Source Naturals
K-Mag CSource Naturals · Tablet or Pill150 mg per serving
Cal-Mag Citrate 1:1 ratio, Solaray
Cal-Mag Citrate 1:1 ratioSolaray · Capsule1,000 mg per serving
Keto Start, Amvilab
Keto StartAmvilab · Capsule1,000 mg per serving
Dyno-Mins Magnesium 250 mg, NaturesPlus
Dyno-Mins Magnesium 250 mgNaturesPlus · Tablet or Pill250 mg per serving
MSM Complex, Progressive Professional from Progressive Laboratories
MSM ComplexProgressive Professional from Progressive Laboratories · Capsule7.0 mg per serving
Tri-Salts, Ecological Formulas
Tri-SaltsEcological Formulas · Powder250 mg per serving
Boron Joint with CurcuWIN, Allergy Research Group
Boron Joint with CurcuWINAllergy Research Group · Capsule20 mg per serving
More Chill Magnesium + L-Theanine, Well Minerals Powered by MDLogic
More Chill Magnesium + L-TheanineWell Minerals Powered by MDLogic · Capsule200 mg per serving
CG5 Unflavored, PMD
CG5 UnflavoredPMD · Powder66 mg per serving
Calming Day Lemon, Jarrow Formulas
Calming Day LemonJarrow Formulas · Powder350 mg per serving
Cenitol, Metagenics
CenitolMetagenics · Powder200 mg per serving
MigraMAXX, Karuna
MigraMAXXKaruna · Capsule600 mg per serving
Relax + Calm Magnesium Blackberry Hibiscus Oasis, MegaFood
Relax + Calm Magnesium Blackberry Hibiscus OasisMegaFood · Powder300 mg per serving
Relax + Calm Magnesium Raspberry Lemonade, MegaFood
Relax + Calm Magnesium Raspberry LemonadeMegaFood · Powder300 mg per serving
Magnesium Glycinate Complex 220 mg, Nature's Way
Magnesium Glycinate Complex 220 mgNature's Way · Tablet or Pill220 mg per serving
Magnesium Gummies 200 mg Berry Flavor, Qunol Minerals
Magnesium Gummies 200 mg Berry FlavorQunol Minerals · Gummy or Jelly200 mg per serving
Magnesium 200 mg, NutraBio
Magnesium 200 mgNutraBio · Capsule200 mg per serving
Magnesium Glycinate with L-Theanine 350 mg, Bucklebury
Magnesium Glycinate with L-Theanine 350 mgBucklebury · Capsule350 mg per serving
Magnesium Night High Absorption 325 mg Naturally Flavored, Natrol
Magnesium Night High Absorption 325 mg Naturally FlavoredNatrol · Powder325 mg per serving
Magnesium Citrus Flavor, Windmill
Magnesium Citrus FlavorWindmill · Liquid325 mg per serving
Mind-Max, Nature's Sunshine
Mind-MaxNature's Sunshine · Capsule70 mg per serving
Magnesium Citrate Softgels, NOW
Magnesium Citrate SoftgelsNOW · Softgel Capsule400 mg per serving
Magtein, NOW
MagteinNOW · Capsule144 mg per serving
Liposomal Magnesium Glycinate, Codeage
Liposomal Magnesium GlycinateCodeage · Capsule350 mg per serving
Magnesium Gels 400 mg, Carlson
Magnesium Gels 400 mgCarlson · Softgel Capsule400 mg per serving
Chelated Magnesium Glycinate 200 mg, Carlson
Chelated Magnesium Glycinate 200 mgCarlson · Tablet or Pill200 mg per serving
Calmify, JoySpring
CalmifyJoySpring · Liquid6.8 mg per serving
Magnesium Citrate Softgels 250 mg, Nature's Truth
Magnesium Citrate Softgels 250 mgNature's Truth · Softgel Capsule250 mg per serving
Magnesium Lactate, SP Standard Process
Magnesium LactateSP Standard Process · Capsule200 mg per serving
Calm Spirit, Health Concerns
Calm SpiritHealth Concerns · Capsule121 mg per serving
H
Hepat-Ex (Chelidonium)Douglas Laboratories · Liquid3.0 C per serving
C
Calcium & Magnesium CitrateNatural Factors · Tablet or Pill250 mg per serving
C
Calcium & Magnesium With Potassium, Zinc, Manganese Plus DNatural Factors · Capsule125 mg per serving
C
CalciologyaProvenProduct · Tablet or Pill250 mg per serving
C
Coconut CleanseGarden Greens · Liquid50 mg per serving
R
Re-CompGNC Beyond Raw · Softgel Capsule25 mg per serving
Z
Z-Core PMMusclePharm · Capsule113 mg per serving
C
Calcium Chewable 350 mgThompson · Other (e.g. tea bag)105 mg per serving
M
Max Nitro 2MM Sports Nutrition · Capsule27 mg per serving
L
Liquid Zinc Magnesium Aspartate Natural Berry FlavorTrace Minerals Research TMRFIT Series · Liquid450 mg per serving
M
Mutant Madness Sour Fuzzy PeachFit Foods · Powder15 mg per serving
5
5-HTP PlusOL Olympian Labs · Capsule40 mg per serving
H
Hot Flash Perimenopause SupportVitamer Laboratories · Capsule100 mg per serving
B
Bone NutrientsSeeking Health · Capsule100 mg per serving
L
Lung Support FormulaU.S. Doctors' Clinical · Capsule20 mg per serving
A
Activated QuercetinSource Naturals · Tablet or Pill50 mg per serving
K
Keto BHB Apple-PearKetoLogic · Powder75 mg per serving
K
Keto BHB Orange-MangoKetoLogic · Powder75 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).