United States
Data
Supplements

Calcium in supplements · page 247

14,548 supplements on the U.S. market list Calcium with an amount per serving. The official Tolerable Upper Intake Level for adults is 2,500 mg a day.

Tolerable Upper Intake Level (UL)

The highest daily amount that is unlikely to cause harm for almost all healthy people, from food, drinks and supplements combined.

AgeMenWomenPregnancyBreastfeeding
0-6 months1,000 mg1,000 mg——
7-12 months1,500 mg1,500 mg——
1–3 years2,500 mg2,500 mg——
4–8 years2,500 mg2,500 mg——
9–13 years3,000 mg3,000 mg——
14–18 years3,000 mg3,000 mg3,000 mg3,000 mg
19–50 years2,500 mg2,500 mg2,500 mg2,500 mg
51–70 years2,000 mg2,000 mg——
71+ years2,000 mg2,000 mg——

Source: NIH ODS Calcium Fact Sheet for Health Professionals, Table 3 (updated 2026-06-22).

Supplements with Calcium

14,548 shown · page 247 of 304

Butyric Acid, Ecological Formulas
Butyric AcidEcological Formulas · Capsule42 mg per serving
Melatonin 3000 mcg with Vitamin B-6, Sunshine Naturals
Melatonin 3000 mcg with Vitamin B-6Sunshine Naturals · Tablet or Pill55 mg per serving
Bilberry Extract 50 mg, Source Naturals
Bilberry Extract 50 mgSource Naturals · Tablet or Pill64 mg per serving
Bilberry Extract 100 mg, Source Naturals
Bilberry Extract 100 mgSource Naturals · Tablet or Pill59 mg per serving
Melatonin 5.0 mg, Source Naturals Sleep Science
Melatonin 5.0 mgSource Naturals Sleep Science · Tablet or Pill30 mg per serving
Active A 25,000 IU, Source Naturals
Active A 25,000 IUSource Naturals · Tablet or Pill21 mg per serving
Cal/Mag Powder, Metabolic Maintenance
Cal/Mag PowderMetabolic Maintenance · Powder333 mg per serving
Easy-C 500 mg, Natrol
Easy-C 500 mgNatrol · Capsule50 mg per serving
L-Tryptophan 500 mg, Source Naturals
L-Tryptophan 500 mgSource Naturals · Tablet or Pill52 mg per serving
Melatonin 3.0 mg, Source Naturals
Melatonin 3.0 mgSource Naturals · Tablet or Pill33 mg per serving
Grassfed Living Bone, Ancestral Supplements
Grassfed Living BoneAncestral Supplements · Capsule750 mg per serving
Alpha Lipoic Acid 200 mg, WholeHealth
Alpha Lipoic Acid 200 mgWholeHealth · Tablet or Pill49 mg per serving
Melatonin 3 mg, Mason Natural
Melatonin 3 mgMason Natural · Tablet or Pill55 mg per serving
Ester-C 24 Hour Immune Support 500 mg, NatureSmart
Ester-C 24 Hour Immune Support 500 mgNatureSmart · Tablet or Pill110 mg per serving
Melatonin 5 mg Time Release, BIOVEA
Melatonin 5 mg Time ReleaseBIOVEA · Tablet or Pill63 mg per serving
Natto-Serra (Nattokinase-Serrapeptase), Doctor's Best
Natto-Serra (Nattokinase-Serrapeptase)Doctor's Best · Capsule29 mg per serving
Natural Brain Enhancers, Doctor's Best
Natural Brain EnhancersDoctor's Best · Capsule120 mg per serving
Ashwagandha 570 mg, BIOVEA
Ashwagandha 570 mgBIOVEA · Tablet or Pill130 mg per serving
Natural Digestive Enzymes, Carlson
Natural Digestive EnzymesCarlson · Tablet or Pill22 mg per serving
Keto Power, Everyday Health
Keto PowerEveryday Health · Capsule400 mg per serving
Chelated Calcium 500 mg, Carlson
Chelated Calcium 500 mgCarlson · Tablet or Pill500 mg per serving
Pyruvate 600 mg, NOW Sports
Pyruvate 600 mgNOW Sports · Capsule212 mg per serving
Garcinia Cambogia Fruit Rind Extract, Bluebonnet
Garcinia Cambogia Fruit Rind ExtractBluebonnet · Capsule120 mg per serving
Garcinia Cambogia Fruit Rind Extract, Bluebonnet
Garcinia Cambogia Fruit Rind ExtractBluebonnet · Capsule120 mg per serving
Calcium 600 + D, Wonder Laboratories
Calcium 600 + DWonder Laboratories · Tablet or Pill600 mg per serving
Calcium Citrate 950 mg, Wonder Laboratories
Calcium Citrate 950 mgWonder Laboratories · Tablet or Pill200 mg per serving
DGL-CW, Wonder Laboratories
DGL-CWWonder Laboratories · Other (e.g. tea bag)170 mg per serving
Calcium 600 + D, Wonder Laboratories
Calcium 600 + DWonder Laboratories · Tablet or Pill600 mg per serving
DGL-CW, Wonder Laboratories
DGL-CWWonder Laboratories · Other (e.g. tea bag)0.00 NP per serving
Super Citrimax 1000 mg, NaturesPlus
Super Citrimax 1000 mgNaturesPlus · Tablet or Pill450 mg per serving
Full Spectrum Antler Velvet 250 mg, Planetary Herbals
Full Spectrum Antler Velvet 250 mgPlanetary Herbals · Tablet or Pill194 mg per serving
Full Spectrum Ashwagandha 570 mg, Planetary Herbals
Full Spectrum Ashwagandha 570 mgPlanetary Herbals · Tablet or Pill56 mg per serving
Full Spectrum Valerian Extract 650 mg, Planetary Herbals
Full Spectrum Valerian Extract 650 mgPlanetary Herbals · Tablet or Pill47 mg per serving
Betaine HCL + 250 mg, KAL
Betaine HCL + 250 mgKAL · Tablet or Pill32 mg per serving
N
Nitro-Tech Hardcore Vanilla Ice Cream MilkshakeMuscleTech · Liquid672 mg per serving
A
Arjuna-HeartAyush Herbs · Capsule100 mg per serving
A
AlkaCare pHBioclinic Naturals · Powder690 mg per serving
G
Ga AdrenalSystemic Formulas Bio Function · Capsule6.0 mg per serving
C
CTV Vitamin VSystemic Formulas Bio Nutriment · Capsule34 mg per serving
P
PurePea Unflavored/UnsweetenedDesigns for Health · Powder40 mg per serving
P
PurePea Natural Vanilla FlavorDesigns for Health · Powder35 mg per serving
P
PMS Formula With IndolplexIntegrative Therapeutics · Tablet or Pill200 mg per serving
C
Calcium, Magnesium & PotassiumInnate Response Formulas · Tablet or Pill100 mg per serving
N
NF Formulas Spectra 303-TIntegrative Therapeutics · Tablet or Pill40 mg per serving
N
NF Formulas Liquid Calcium Magnesium Vanilla FlavorIntegrative Therapeutics · Liquid500 mg per serving
C
Cal Apatite PlusMetagenics · Tablet or Pill660 mg per serving
C
Cal Apatite with MagnesiumMetagenics · Tablet or Pill600 mg per serving
S
Secrets of the Psyllium Pure Plantago HusksTrader Darwin's · Powder20 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).