United States
Data
Supplements

Calcium in supplements · page 264

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 264 of 304

Alpha-Lipoic Acid 400 mg, Natural Factors
Alpha-Lipoic Acid 400 mgNatural Factors · Capsule40 mg per serving
Biotin 5000 mcg, Natural Factors
Biotin 5000 mcgNatural Factors · Capsule125 mg per serving
Chromium GTF Chelate 500 mcg, Natural Factors
Chromium GTF Chelate 500 mcgNatural Factors · Tablet or Pill65 mg per serving
Premium Milk Thistle 160 mg, Natural Factors
Premium Milk Thistle 160 mgNatural Factors · Capsule40 mg per serving
5-HTP L-5-Hydroxy-Tryptophan 100 mg, Puritan's Pride
5-HTP L-5-Hydroxy-Tryptophan 100 mgPuritan's Pride · Capsule126 mg per serving
5-HTP L-5-Hydroxy-Tryptophan 100 mg, Puritan's Pride
5-HTP L-5-Hydroxy-Tryptophan 100 mgPuritan's Pride · Capsule126 mg per serving
B1 100 mg, Nature Made
B1 100 mgNature Made · Tablet or Pill34 mg per serving
5-HTP, High Level
5-HTPHigh Level · Capsule328 mg per serving
PureZyme, TransFormation The Genesis of Good Health
PureZymeTransFormation The Genesis of Good Health · Capsule79 mg per serving
Vegetarian Collagen Peptides, Ancient Nutrition
Vegetarian Collagen PeptidesAncient Nutrition · Tablet or Pill76 mg per serving
PureZyme, TransFormation The Genesis of Good Health
PureZymeTransFormation The Genesis of Good Health · Capsule79 mg per serving
Apple Cider Vinegar 500 mg, Source Naturals
Apple Cider Vinegar 500 mgSource Naturals · Tablet or Pill29 mg per serving
B-2 100 mg, Source Naturals
B-2 100 mgSource Naturals · Tablet or Pill89 mg per serving
B-2 100 mg, Source Naturals
B-2 100 mgSource Naturals · Tablet or Pill89 mg per serving
Boswellia Extract, Source Naturals
Boswellia ExtractSource Naturals · Tablet or Pill130 mg per serving
Butcher's Broom 500 mg, Source Naturals
Butcher's Broom 500 mgSource Naturals · Tablet or Pill35 mg per serving
DLPA 750 mg, Source Naturals
DLPA 750 mgSource Naturals · Tablet or Pill54 mg per serving
Green Tea Extract 500 mg, Source Naturals
Green Tea Extract 500 mgSource Naturals · Tablet or Pill47 mg per serving
Gymnema Sylvestre 550 mg, Source Naturals
Gymnema Sylvestre 550 mgSource Naturals · Tablet or Pill32 mg per serving
Inosine 500 mg, Source Naturals Athletic Series
Inosine 500 mgSource Naturals Athletic Series · Tablet or Pill30 mg per serving
Ivy Gourd Extract 250 mg, Source Naturals
Ivy Gourd Extract 250 mgSource Naturals · Tablet or Pill45 mg per serving
L-Theanine 200 mg, Source Naturals
L-Theanine 200 mgSource Naturals · Tablet or Pill76 mg per serving
L-Tyrosine 500 mg, Source Naturals
L-Tyrosine 500 mgSource Naturals · Tablet or Pill114 mg per serving
L-Tyrosine 500 mg, Source Naturals
L-Tyrosine 500 mgSource Naturals · Tablet or Pill114 mg per serving
Maca, Source Naturals
MacaSource Naturals · Tablet or Pill32 mg per serving
Mangosteen, Source Naturals
MangosteenSource Naturals · Tablet or Pill36 mg per serving
Mastic Gum Extract 500 mg, Source Naturals
Mastic Gum Extract 500 mgSource Naturals · Capsule38 mg per serving
Mega Strength Beta Sitosterol 375 mg, Source Naturals
Mega Strength Beta Sitosterol 375 mgSource Naturals · Tablet or Pill60 mg per serving
Mangosteen, Source Naturals
MangosteenSource Naturals · Tablet or Pill36 mg per serving
Melatonin 1 mg, Source Naturals
Melatonin 1 mgSource Naturals · Tablet or Pill90 mg per serving
Melatonin Timed Release 3 mg, Source Naturals
Melatonin Timed Release 3 mgSource Naturals · Tablet or Pill31 mg per serving
Melatonin Timed Release 3 mg, Source Naturals
Melatonin Timed Release 3 mgSource Naturals · Tablet or Pill31 mg per serving
Melatonin 3 mg Timed Release, Source Naturals
Melatonin 3 mg Timed ReleaseSource Naturals · Tablet or Pill31 mg per serving
Myricetin 100 mg, Source Naturals
Myricetin 100 mgSource Naturals · Tablet or Pill98 mg per serving
PABA 100 mg, Source Naturals
PABA 100 mgSource Naturals · Tablet or Pill53 mg per serving
PABA 100 mg, Source Naturals
PABA 100 mgSource Naturals · Tablet or Pill53 mg per serving
Pantothenic Acid 100 mg, Source Naturals
Pantothenic Acid 100 mgSource Naturals · Tablet or Pill64 mg per serving
Pantothenic Acid 100 mg, Source Naturals
Pantothenic Acid 100 mgSource Naturals · Tablet or Pill64 mg per serving
Pine Bark Extract 150 mg, Source Naturals
Pine Bark Extract 150 mgSource Naturals · Tablet or Pill83 mg per serving
Reduced Glutathione 50 mg, Source Naturals
Reduced Glutathione 50 mgSource Naturals · Tablet or Pill20 mg per serving
Meriva Turmeric Complex 500 mg, Source Naturals
Meriva Turmeric Complex 500 mgSource Naturals · Tablet or Pill71 mg per serving
Cranberry Standardized Extract 500 mg, Meijer
Cranberry Standardized Extract 500 mgMeijer · Tablet or Pill165 mg per serving
Melatonin Extended Release 2.5 mg, Kirkman
Melatonin Extended Release 2.5 mgKirkman · Tablet or Pill132 mg per serving
HepatoCleanse, NutriClean
HepatoCleanseNutriClean · Capsule70 mg per serving
Pro-Biotic 30 Billion CFU, Kaged Muscle
Pro-Biotic 30 Billion CFUKaged Muscle · Capsule307 mg per serving
B2 Riboflavin 100 mg, Windmill Natural Vitamins
B2 Riboflavin 100 mgWindmill Natural Vitamins · Tablet or Pill50 mg per serving
B2 Riboflavin 50 mg, Windmill Natural Vitamins
B2 Riboflavin 50 mgWindmill Natural Vitamins · Tablet or Pill85 mg per serving
B12 Cyanocobalamin 100 mcg, Windmill Natural Vitamins
B12 Cyanocobalamin 100 mcgWindmill Natural Vitamins · Tablet or Pill110 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).