United States
Data
Supplements

Magnesium in supplements · page 83

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 83 of 209

L
Life Extenstion Mix CapsulesLife Extension · Capsule400 mg per serving
L
Life Extenstion Mix TabletsLife Extension · Tablet or Pill400 mg per serving
L
Life Extenstion Mix PowderLife Extension · Powder400 mg per serving
L
Life Extenstion Mix Tablets With Extra NiacinLife Extension · Tablet or Pill400 mg per serving
L
Life Extenstion Mix Capsules Without CopperLife Extension · Capsule400 mg per serving
L
Life Extenstion Mix Tablets Without CopperLife Extension · Tablet or Pill400 mg per serving
L
Life Extenstion Mix Powder Without CopperLife Extension · Powder400 mg per serving
V
Vegan Defense GreensGT Genesis Today · Powder31 mg per serving
V
Vegan Defense GreensGT Genesis Today · Powder31 mg per serving
T
Total Nutrition Liquid MultivitaminGT Genesis Today · Liquid8.0 mg per serving
E
Energy & Metabolism VanillaGNC Women's Ultra Mega · Powder100 mg per serving
B
Bone DensityGNC Women's Ultra Mega · Other (e.g. tea bag)250 mg per serving
B
Bone Density Without Iron And IodineGNC Women's Ultra Mega · Other (e.g. tea bag)250 mg per serving
U
Ultra Mega Gold without IronGNC Ultra Mega · Other (e.g. tea bag)50 mg per serving
S
Super Multi Iron FreeNatural Factors · Tablet or Pill50 mg per serving
W
Women's MultiStartNatural Factors · Tablet or Pill150 mg per serving
W
Women's MultiStartNatural Factors · Tablet or Pill150 mg per serving
W
Women's Plus MultiStartNatural Factors · Tablet or Pill150 mg per serving
S
Sun-Chlorella A 200 mgSun Chlorella · Tablet or Pill11 mg per serving
S
Sun-Chlorella A GranulesSun Chlorella · Powder11 mg per serving
S
Sun-Chlorella A GranulesSun Chlorella · Powder11 mg per serving
S
Sun-Chlorella A 500 mgSun Chlorella · Tablet or Pill11 mg per serving
S
Sun-Chlorella A 500 mgSun Chlorella · Tablet or Pill11 mg per serving
S
Sun-Chlorella A PowderSun Chlorella · Powder17 mg per serving
M
MultiFactors Women's 50+Natural Factors · Capsule100 mg per serving
R
Raw VitaminsSunwarrior · Capsule10 mg per serving
R
Raw VitaminsSunwarrior · Capsule10 mg per serving
U
Ultra NourishHairGNC Women's · Other (e.g. tea bag)40 mg per serving
U
Ultra NourishHairGNC Women's · Other (e.g. tea bag)40 mg per serving
H
Higher Mind With PhosphatidylserineSource Naturals · Tablet or Pill200 mg per serving
M
Menopause MultipleSource Naturals · Tablet or Pill234 mg per serving
L
Life Force MultipleSource Naturals · Tablet or Pill100 mg per serving
W
Wellness MultipleSource Naturals Wellness · Tablet or Pill25 mg per serving
G
Gluco-ScienceSource Naturals · Tablet or Pill50 mg per serving
V
Vegan GreensGT Genesis Today · Powder31 mg per serving
E
Energy & Metabolism ChocolateGNC Mega Men · Powder50 mg per serving
M
Multi-LifeHBC Protocols · Tablet or Pill125 mg per serving
E
Ester-C Kidstiks Groovy Grape FlavorAmerican Health · Powder58 mg per serving
E
Ester-C Kidstiks Tropical PunchAmerican Health · Powder58 mg per serving
K
Kidstiks Groovy GrapeAmerican Health · Powder58 mg per serving
K
Kidstiks Tropical PunchAmerican Health · Powder58 mg per serving
M
Mineral ComplexPeggy's Body Science · Tablet or Pill500 mg per serving
B
Bone Density FactorsCountry Life · Tablet or Pill75 mg per serving
B
Bone Density FactorsCountry Life · Tablet or Pill75 mg per serving
U
Ultimate Protein System ChocolateBioChem Sports · Powder62 mg per serving
E
Enhanced QM-1Country Life · Capsule10 mg per serving
U
Ultimate Protein System ChocolateBioChem Sports · Powder62 mg per serving
H
Hair, Skin & NailsNatural Factors WS WomenSense · Capsule100 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).