Supplements

Magnesium in supplements · page 182

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 182 of 209

MagteinBricker Labs · Capsule144 mg per serving

Magnesium BHB 7 g UnflavoredNutricost · Powder700 mg per serving

Ultra SleepUltra6 Nutrition · Liquid10 mg per serving

Extra Strength Magnesium 400 mgNature Made · Softgel Capsule400 mg per serving

Relax Instant-Mix Natural Berry Flavoryoutheory · Powder300 mg per serving

Happy BellyMetabolic Maintenance · Capsule25 mg per serving

Fibro PlusPriority One Nutritional Supplements · Capsule200 mg per serving

P-5-P 50 mgNOW · Capsule25 mg per serving

Calcium/Magnesium (Citrate/Malate Formula)Vital Nutrients · Capsule160 mg per serving

Magnesium Bisglycinate 350 mgNatural Grocers by Vitamin Cottage · Capsule350 mg per serving

Magnesium L-ThreonateSwanson · Capsule48 mg per serving

Vitamin C PowderBioCare · Powder120 mg per serving

Magnesium Inositol Relax Lemonade FlavorNOW · Powder400 mg per serving

Buffered Magnesium AscorbateNOW · Powder60 mg per serving

Calcium Citrate & MagnesiumBluebonnet · Other (e.g. tea bag)400 mg per serving

Calcium Magnesium 1:1 RatioBluebonnet · Capsule250 mg per serving

Calcium Citrate & MagnesiumBluebonnet · Other (e.g. tea bag)400 mg per serving

Chelated Calcium MagnesiumBluebonnet · Other (e.g. tea bag)200 mg per serving

Magnesium Citrate 800 mgDouble Wood Supplements · Capsule800 mg per serving

Magnesium Glycinate 400 mgDouble Wood Supplements · Capsule60 mg per serving

Calcium MagnesiumNutribiotic Essentials · Capsule125 mg per serving

Calcium Magnesium 1:1 RatioBluebonnet · Capsule250 mg per serving

Calcium MagnesiumNutribiotic Essentials · Capsule125 mg per serving

Magnesium Glycinate Chelate ComplexNATURELO Premium Supplements · Capsule200 mg per serving

Mag ThreonateOrtho Molecular Products · Capsule144 mg per serving

Buffered Magnesium Oxide 180 mgKirkman · Capsule180 mg per serving

P-5-P (Pyridoxal-5-Phosphate) with Magnesium BisglycinateKirkman · Capsule100 mg per serving

Magnesium with Vitamin B6Puritan's Pride · Tablet or Pill400 mg per serving

Vitamin D3 with MagnesiumPuritan's Pride · Tablet or Pill100 mg per serving

Mag-Cal Citrate 200 mg / 200 mgNuMedica · Capsule200 mg per serving

Calcium Magnesium PotassiumVitamin World · Other (e.g. tea bag)500 mg per serving

Muscle SupportInstaflex · Capsule150 mg per serving

Sleep FormulaGNC Preventive Nutrition · Other (e.g. tea bag)60 mg per serving

5-HTP 100 mgRadiance · Capsule25 mg per serving

Liquid Calcium Magnesium Orange FlavorTropical Oasis · Liquid720 mg per serving

Amino Linx BCAA/EAA Matrix LemonadePS ProSupps · Powder60 mg per serving

BeautyBalance Advanced PMS FormulaBeautyFit · Capsule75 mg per serving

EnergizeiSatori · Tablet or Pill150 mg per serving

Formula FMRx Vitamins · Other (e.g. tea bag)100 mg per serving

Liquid Vitamin D3 With ConcenTrace 5000 IU Tropical CherryTrace Minerals Research · Liquid5.0 mg per serving

Me SportsSignum Biosciences · Tablet or Pill16 mg per serving

LYTEshowDrinkwel · Liquid40 mg per serving

FenuMassPS ProSupps · Capsule90 mg per serving

Sleep Nighttime Powderyoutheory · Powder200 mg per serving

Liquid Cal-Mag Blueberry FlavorNOW · Liquid250 mg per serving

Quick Release Glucosamine 65 PlusSimply Supplements · Capsule50 mg per serving

Ultra Menoease With BioResponse DIMDouglas Laboratories · Capsule100 mg per serving

Coral Calcium 1000 mgSpring Valley · Capsule56 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).