Supplements

Calcium in supplements · page 288

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 288 of 304

Vitamin D-3 PowderNOW · Powder120 mg per serving

B-6 100 mg21st Century · Tablet or Pill160 mg per serving

Zinc 50 mg21st Century · Tablet or Pill125 mg per serving

C 1000 mg21st Century · Tablet or Pill52 mg per serving

Calcium Aspartate AnhydrousEZorb · Powder1.7 Gram(s) per serving

D3 10 mcg (400 IU)21st Century · Tablet or Pill90 mg per serving

D3 25 mcg (1000 IU)21st Century · Tablet or Pill90 mg per serving

Calcium 600 mgSignature Care · Tablet or Pill600 mg per serving

D3 25 mcg (1000 IU)21st Century · Tablet or Pill90 mg per serving

Calcium Citrate +D3 Maximum21st Century · Tablet or Pill630 mg per serving

Calcium 500+D321st Century · Tablet or Pill500 mg per serving

Calcium 500+D3 plus Extra D321st Century · Tablet or Pill500 mg per serving

600+D321st Century · Tablet or Pill600 mg per serving

Cal-Mag 2:1 Ratio365 Everyday Value · Capsule1,000 mg per serving

Vitamin C Powder 5000 mgSolaray · Powder610 mg per serving

Vitamin D3Bodybuilding.com Signature · Tablet or Pill35 mg per serving

Calcium Citrate plus Vitamin DThe Vitamin Shoppe · Tablet or Pill1,000 mg per serving

D3 125 mcg (5000 IU)The Vitamin Shoppe · Tablet or Pill20 mg per serving

Niacin 500 mgCarlson · Tablet or Pill26 mg per serving

B-6 50 mgSource Naturals · Tablet or Pill28 mg per serving

Calcium 600 mg plus Vitamin D3Sundown · Tablet or Pill1,200 mg per serving

Niacin 500 mgSundown · Other (e.g. tea bag)106 mg per serving

Advanced CoQ10 200 mgSchiff MegaRed · Capsule50 mg per serving

B12 TurboHUM · Tablet or Pill30 mg per serving

Chelated Chromium 200 mcgCarlson · Tablet or Pill26 mg per serving

Super Biotin 5000 mcgPuritan's Pride · Capsule200 mg per serving

Glucosamine Sulfate 500 mgPuritan's Pride · Capsule80 mg per serving

Zen ModeNobi Nutrition · Capsule328 mg per serving

Policosanol 10 mgGNC · Tablet or Pill40 mg per serving

L-Citrulline 750 mgNOW · Capsule36 mg per serving

B-12 100 mcgMason Natural · Tablet or Pill79 mg per serving

B-12 500 mcgMason Natural · Tablet or Pill65 mg per serving

Extended Release B-12 1000 mcgMason Natural · Tablet or Pill100 mg per serving

L-Arginine 500 mgMason Natural · Capsule60 mg per serving

Tribulus 1,000 mgNOW Sports · Tablet or Pill130 mg per serving

5-HTP 100 mgNatural Factors · Other (e.g. tea bag)70 mg per serving

Daily Mushroom Complex 10 Mushroom BlendDaily Health · Capsule200 mg per serving

Premium Calcium PyruvateWholeHealth · Capsule225 mg per serving

Vitamin B-12 1000 mcg Time ReleasedBasic Vitamins · Tablet or Pill30 mg per serving

HMB 1,000 mgMyology · Capsule130 mg per serving

Calcium D-Glucarate 500 mgAN Amazing Nutrition Amazing Formulas · Tablet or Pill63 mg per serving

Calcium 30 ppmOrgana Crystalline Nano · Liquid0.00 NP 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).