Supplements

Calcium in supplements · page 290

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 290 of 304

Calcium 500 mg With Vitamin D3 400 IUNature Made · Tablet or Pill500 mg per serving

D3 1000 IUNature Made · Tablet or Pill92 mg per serving

Iron 65 mgNature Made · Tablet or Pill18 mg per serving

D3 1000 IUNature Made · Tablet or Pill92 mg per serving

D3 50 mcg (2000 IU)Nature Made · Tablet or Pill105 mg per serving

Iron 65 mgNature Made · Tablet or Pill18 mg per serving

Calcium Citrate Petite with Vitamin DReliable-1 Laboratories · Tablet or Pill400 mg per serving

Oyster Shell Calcium 500 mg + DReliable 1 Laboratories · Other (e.g. tea bag)500 mg per serving

Iron 65 mgNature Made · Tablet or Pill18 mg per serving

Ferrous Sulfate 325 mgReliable-1 Laboratories · Tablet or Pill16 mg per serving

Calcium Citrate with Vitamin DLife Extension · Capsule200 mg per serving

Calcium with Vitamin DNoor Vitamins · Tablet or Pill600 mg per serving

Chelated Cal-MagThe Vitamin Shoppe · Tablet or Pill500 mg per serving

Calcium D-GlucarateSeeking Health · Capsule30 mg per serving

K2+Roex · Tablet or Pill20 mg per serving

HMB SportBlonyx · Capsule195 mg per serving

B-1 100 mgSource Naturals · Tablet or Pill35 mg per serving

Gamma Oryzanol 60 mgSource Naturals · Tablet or Pill23 mg per serving

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

Women's Dong Quai Treasure 860 mgPlanetary Herbals · Tablet or Pill68 mg per serving

Women's Dong Quai TreasurePlanetary Herbals · Tablet or Pill68 mg per serving

BioPerine 10 mgSource Naturals · Tablet or Pill28 mg per serving

Gamma Oryzanol 30 mgSource Naturals Athletic Series · Tablet or Pill50 mg per serving

Phytosterol Complex 113 mgSource Naturals · Tablet or Pill110 mg per serving

Ginkgo-24 40 mgSource Naturals · Tablet or Pill20 mg per serving

BromelainThe Vitamin Shoppe · Tablet or Pill141 mg per serving

Carnipure L-Carnitine 1000 mgThe Vitamin Shoppe · Tablet or Pill32 mg per serving

Diet PyruvateSource Naturals · Powder339 mg per serving

Promensil Menopause Double StrengthReal Health Laboratories · Tablet or Pill50 mg per serving

Red Clover Extract 500 mgSource Naturals · Tablet or Pill119 mg per serving

Beta-Glucan 250 mgSource Naturals · Tablet or Pill110 mg per serving

EGCG 350 mgSource Naturals · Tablet or Pill50 mg per serving

EGCGSource Naturals · Tablet or Pill50 mg per serving

DHEA 50 mgMason Natural · Capsule39 mg per serving

DIM Diindolylmethane 100 mgMason Natural · Capsule35 mg per serving

Calcium CareVitality True Food · Tablet or Pill440 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).