Supplements

Magnesium in supplements · page 184

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	Pregnancy	Breastfeeding
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	350 mg	350 mg
19–30 years	350 mg	350 mg	350 mg	350 mg
31–50 years	350 mg	350 mg	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 184 of 209

Sleep Complex with MelatoninSNAP · Capsule120 mg per serving

TrueMagnesiumNatureCity · Powder200 mg per serving

Magnesium ComplexNaturgin Products USA · Capsule460 mg per serving

Advanced Magnesium Glycinate ComplexDoctors' Preferred · Tablet or Pill420 mg per serving

Maxi Potassium MagnesiumMaxi Health · Capsule50 mg per serving

Easy MagnesiumWoodstock Vitamins · Capsule250 mg per serving

MagnesiumMegaFood · Tablet or Pill50 mg per serving

Magnesium 300 mgMegaFood · Capsule300 mg per serving

Potassium with Extend-Release MagnesiumLife Extension · Capsule250 mg per serving

Magnesium CitraMateThorne · Capsule135 mg per serving

Chelated MagnesiumSuzy Cohen · Capsule250 mg per serving

Melatonin Plus MagnesiumKirkman · Capsule100 mg per serving

Magnesium with Silica 300 mgCountry Life Target-Mins · Capsule300 mg per serving

Magnesium Potassium AspartateCountry Life Target-Mins · Tablet or Pill600 mg per serving

Lipsomal Magnesium GlycinateCodeage · Powder200 mg per serving

Magnesium Complex 500 mgNature's Way · Capsule500 mg per serving

Potassium 99 mg + Magnesium 210 mgNutricost · Capsule210 mg per serving

Advanced MagnesiumInnovixLabs · Capsule210 mg per serving

MagSRT B-FreeJigsaw Health · Tablet or Pill500 mg per serving

Magnesium Glycinate with BioPerineNOW · Capsule200 mg per serving

Magnesium Phospholipid ComplexBioCare · Capsule300 mg per serving

Vitamin B5BioCare · Capsule26 mg per serving

Optimum Absorption Magnesium Glycinate with BioPerineMason Natural · Capsule240 mg per serving

Passifen (Passiflora)Douglas Laboratories · Liquid6.0 C per serving

Calcium & MagnesiumNatural Factors · Tablet or Pill175 mg per serving

Calcium CitrateOL Olympian Labs · Tablet or Pill400 mg per serving

Coral CompleteGHT Global Health Trax · Capsule1.2 mg per serving

XT3 Pink LemonadeMM Sports Nutrition · Powder150 mg per serving

XT3 Fruit PunchMM Sports Nutrition · Powder150 mg per serving

XT3 Pink OrangeMM Sports Nutrition · Powder150 mg per serving

Xtinguisher Fruit PunchMM Sports Nutrition · Powder150 mg per serving

Liquid Magnesium 300 mg Tangerine FlavorTrace Minerals Research · Liquid300 mg per serving

ConcenTrace Kids Trace Mineral Drops StrawberryTrace Minerals Research · Liquid15 mg per serving

Fast-C With DihydroquercetinLife Extension · Tablet or Pill8.0 mg per serving

Coral Calcium 500 mg + Vitamin D3Vitamin World · Capsule56 mg per serving

Calcium Plus MagnesiumSchiff · Softgel Capsule300 mg per serving

Bone Care with Calcium Magnesium Vitamins D3 KVitamin World · Other (e.g. tea bag)200 mg per serving

Serotonin Brain FoodNS Natural Stacks · Capsule50 mg per serving

Blueberry Flavor Liquid Cal-MagProtocol For Life Balance · Liquid250 mg per serving

UT IntensiveRidgeCrest Herbals · Capsule100 mg per serving

Replace SREndurance Products Company · Tablet or Pill10 mg per serving

Muscle Cramp/Tension FormulaPure Encapsulations · Capsule150 mg per serving

Advanced Sleep FormulaThrive Naturals · Capsule90 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).