Supplements

Calcium in supplements · page 263

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 263 of 304

Buffered Vitamin C PowderNutriCology · Powder202 mg per serving

Buffered Vitamin C 1,000 mgCountry Life · Tablet or Pill200 mg per serving

Buffered Ascorbic Acid CapsulesPure Encapsulations · Capsule15 mg per serving

NeuroRelaxANTIAGING Institute of California · Capsule45 mg per serving

Calcium & Magnesium 300 mgSource Naturals · Tablet or Pill200 mg per serving

Diet Citrimax 1,000 mgSource Naturals · Tablet or Pill178 mg per serving

Move Free Ultra Type II Collagen + Vitamins K2 + D3Schiff · Tablet or Pill100 mg per serving

Calcium with D3 Gummies Cotton CandyThe Vitamin Shoppe · Gummy or Jelly170 mg per serving

Calcium K/DPure Encapsulations · Capsule400 mg per serving

FARS-PLoomis Enzymes · Capsule70 mg per serving

Uni-LiverUniversal · Tablet or Pill130 mg per serving

Keto MaxThrive Naturals · Capsule62 mg per serving

CBD Capsules 15 mgHemp Bombs · Capsule25 mg per serving

CBD Capsules 30 mgHemp Bombs · Capsule25 mg per serving

QuintEssential 0.9Quinton · Liquid1.3 mg per serving

Chewable Calcium Citrate 1,000 mg with Vitamin D3 10 mcg (400 I.U) Orange FlavorCountry Life · Other (e.g. tea bag)1,000 mg per serving

CalciumNatures Plus Source of Life Garden · Capsule1,000 mg per serving

CollagenBasic Vitamins · Capsule54 mg per serving

Calcium with Vitamin D3AN Amazing Nutrition Amazing Formulas · Softgel Capsule1,200 mg per serving

Chromium-GTFNature's Sunshine · Tablet or Pill80 mg per serving

Shatter Neuro N.O. Black OnyxMuscleTech · Other (e.g. tea bag)50 mg per serving

Calcium LactateSP Standard Process · Tablet or Pill250 mg per serving

Calcium Lactate PowderSP Standard Process · Powder800 mg per serving

Esterified C ComplexBronson · Tablet or Pill55 mg per serving

B-6 100 mgWonder Laboratories · Tablet or Pill120 mg per serving

Oyster Calcium 500 mg + DWonder Laboratories · Tablet or Pill500 mg per serving

Vitamin D3 10,000 IU (250 mcg)Wonder Labs · Tablet or Pill65 mg per serving

Oyster Shell Calcium 500 mgPharbest · Tablet or Pill500 mg per serving

High Potency Calcium 600 mgPharbest · Tablet or Pill600 mg per serving

Melatonin 3 mgNature Made · Tablet or Pill65 mg per serving

L-Theanine 200 mgSource Naturals Serene Science · Tablet or Pill77 mg per serving

L-Carnosine 500 mgSource Naturals · Tablet or Pill88 mg per serving

SOD Power as Glisodin 250 mgSource Naturals · Tablet or Pill51 mg per serving

TheraCran OneTheralogix · Capsule94 mg per serving

Cranberry 500 mgup&up · Tablet or Pill165 mg per serving

EGCG 350 mgSource Naturals · Tablet or Pill51 mg per serving

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

5-HTP 5-Hydroxytryptophan 50 mgNatural Factors Stress-Relax · Other (e.g. tea bag)35 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).