Supplements

Calcium in supplements · page 298

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.

Age	Men	Women	Pregnancy	Breastfeeding
0-6 months	1,000 mg	1,000 mg	—	—
7-12 months	1,500 mg	1,500 mg	—	—
1–3 years	2,500 mg	2,500 mg	—	—
4–8 years	2,500 mg	2,500 mg	—	—
9–13 years	3,000 mg	3,000 mg	—	—
14–18 years	3,000 mg	3,000 mg	3,000 mg	3,000 mg
19–50 years	2,500 mg	2,500 mg	2,500 mg	2,500 mg
51–70 years	2,000 mg	2,000 mg	—	—
71+ years	2,000 mg	2,000 mg	—	—

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

Supplements with Calcium

14,548 shown · page 298 of 304

Melatonin 3 mg Sustained ReleaseThe Vitamin Shoppe · Tablet or Pill45 mg per serving

Cramp Bark ComfortPlanetary Herbals · Tablet or Pill29 mg per serving

Shiitake Mushroom SupremePlanetary Herbals · Tablet or Pill139 mg per serving

Neck And Shoulders SupportPlanetary Herbals · Tablet or Pill78 mg per serving

PlantiOxidantsPlanetary Herbals · Tablet or Pill42 mg per serving

Rehmannia EndurancePlanetary Herbals · Tablet or Pill46 mg per serving

Standardized Black Cohosh Extract 2.5% 80 mgPlanetary Herbals · Tablet or Pill79 mg per serving

Bacopa ExtractPlanetary Herbals · Tablet or Pill120 mg per serving

CodonopsisPlanetary Herbals · Tablet or Pill69 mg per serving

Amla SuperfruitPlanetary Herbals · Tablet or Pill114 mg per serving

Echincea Defense ForcePlanetary Herbals · Tablet or Pill51 mg per serving

St. John's Wort Extract 300 mgPlanetary Herbals · Tablet or Pill31 mg per serving

ImmuNow 250 mgSource Naturals Wellness · Tablet or Pill166 mg per serving

Bacopa ExtractPlanetary Herbals · Tablet or Pill120 mg per serving

Sytrinol 150 mgSource Naturals · Tablet or Pill25 mg per serving

Full Spectrum Chaga 1,000 mgPlanetary Herbals · Tablet or Pill32 mg per serving

Sytrinol 150 mgSource Naturals · Tablet or Pill25 mg per serving

Melatonin 2 mgSource Naturals · Tablet or Pill31 mg per serving

Bupleurum Calmative CompoundPlanetary Herbals · Tablet or Pill57 mg per serving

Suma 500 mgSource Naturals · Tablet or Pill53 mg per serving

Silica 500 mgThe Vitamin Shoppe · Tablet or Pill105 mg per serving

CalciumGenestra Brands · Capsule450 mg per serving

Calcium CitrateDouglas Laboratories · Tablet or Pill250 mg per serving

Super Calcium 260 mgHigher Nature · Capsule260 mg per serving

Calcium Citrate-MalateAdaptogen Research · Tablet or Pill250 mg per serving

Calcium D-Glucarate 500 mgBIOVEA · Capsule124 mg per serving

Calcium AEPSuperSmart · Capsule1,500 mg per serving

Oyster Shell Calcium 500 mgBasic Vitamins · Tablet or Pill500 mg per serving

Calcium Pyruvate 1,500 mgAN Amazing Nutrition Amazing Formulas · Capsule1,500 mg per serving

Calcium 600 mgGeri-Care · Tablet or Pill600 mg per serving

Calcium CitrateFreeda · Tablet or Pill1,000 mg per serving

HMBMET-Rx · Capsule116 mg per serving

Chewable Calcium Peppermint FlavoredBronson Laboratories · Tablet or Pill250 mg per serving

ChromeMateBronson · Capsule133 mg per serving

Maximum Calcium Citrate Plus Vitamin DNature's Bounty · Unknown630 mg per serving

Niacin 500 mg Time ReleasedSundown Naturals · Other (e.g. tea bag)106 mg per serving

Calcet PetitesMission Pharmacal · Tablet or Pill600 mg per serving

C 500 mgThompson · Tablet or Pill70 mg per serving

D3 400 IUThompson · Tablet or Pill36 mg per serving

C Buffered CrystalsThompson · Powder175 mg per serving

C 1000 mgThompson · Tablet or Pill22 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).