United States
Data
Supplements

Calcium in supplements · page 268

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 268 of 304

Artichoke Extract 500, Source Naturals
Artichoke Extract 500Source Naturals · Tablet or Pill37 mg per serving
Cat's Claw 500 mg, Source Naturals
Cat's Claw 500 mgSource Naturals · Tablet or Pill50 mg per serving
Gymnema Sylvestre 450 mg, Source Naturals
Gymnema Sylvestre 450 mgSource Naturals · Tablet or Pill42 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
Melatonin 2.0 mg, Source Naturals Sleep Science
Melatonin 2.0 mgSource Naturals Sleep Science · Tablet or Pill31 mg per serving
Potassium 99 mg, Source Naturals
Potassium 99 mgSource Naturals · Tablet or Pill178 mg per serving
Grape Seed Extract 100 mg, Source Naturals
Grape Seed Extract 100 mgSource Naturals · Capsule20 mg per serving
Red Clover Extract 500 mg, Source Naturals
Red Clover Extract 500 mgSource Naturals · Tablet or Pill119 mg per serving
Vitamin K 500 mcg, Source Naturals
Vitamin K 500 mcgSource Naturals · Tablet or Pill55 mg per serving
Melatonin 1.0 mg, Source Naturals Sleep Science
Melatonin 1.0 mgSource Naturals Sleep Science · Tablet or Pill30 mg per serving
Pantothenic Acid 250 mg, Source Naturals
Pantothenic Acid 250 mgSource Naturals · Tablet or Pill22 mg per serving
Policosanol 10 mg, Source Naturals
Policosanol 10 mgSource Naturals · Tablet or Pill60 mg per serving
PQQ Mind, Source Naturals
PQQ MindSource Naturals · Tablet or Pill32 mg per serving
Reduced Glutathione 250 mg , Source Naturals
Reduced Glutathione 250 mg Source Naturals · Tablet or Pill94 mg per serving
Relora 250 mg, Source Naturals
Relora 250 mgSource Naturals · Tablet or Pill38 mg per serving
Pau D'Arco 500 mg, Source Naturals
Pau D'Arco 500 mgSource Naturals · Tablet or Pill96 mg per serving
Daily Colon Cleanse, Daily Health
Daily Colon CleanseDaily Health · Capsule200 mg per serving
Super Potency Biotin 5000 mcg, Rexall
Super Potency Biotin 5000 mcgRexall · Capsule222 mg per serving
Probiotic Acidophilus, Rexall
Probiotic AcidophilusRexall · Capsule109 mg per serving
Extra Strength B12 2500 mcg, Nature Made
Extra Strength B12 2500 mcgNature Made · Tablet or Pill127 mg per serving
Hair, Skin & Nails, Nature's Measure
Hair, Skin & NailsNature's Measure · Tablet or Pill62 mg per serving
Vitamin B-1 100 mg, Major
Vitamin B-1 100 mgMajor · Tablet or Pill35 mg per serving
Bee Propolis Caps 500 mg, Country Life
Bee Propolis Caps 500 mgCountry Life · Capsule148 mg per serving
Bromelain 500 mg, Whole Foods Market
Bromelain 500 mgWhole Foods Market · Tablet or Pill141 mg per serving
Biotin 5000 mcg, Rite Aid Pharmacy
Biotin 5000 mcgRite Aid Pharmacy · Capsule160 mg per serving
Melatonin 10 mg, The Vitamin Shoppe
Melatonin 10 mgThe Vitamin Shoppe · Tablet or Pill74 mg per serving
5-HTP Time Release 100 mg, BIOVEA
5-HTP Time Release 100 mgBIOVEA · Tablet or Pill32 mg per serving
Melatonin 5 mg, CVS Health
Melatonin 5 mgCVS Health · Tablet or Pill84 mg per serving
Calcium Carbonate Pure Powder, NOW
Calcium Carbonate Pure PowderNOW · Powder600 mg per serving
Calcium Citrate Pure Powder, NOW
Calcium Citrate Pure PowderNOW · Powder600 mg per serving
Calcium Lactate, NOW
Calcium LactateNOW · Tablet or Pill255 mg per serving
Calcium Lactate 10 Grains (650 mg), Wonder Laboratories
Calcium Lactate 10 Grains (650 mg)Wonder Laboratories · Tablet or Pill178 mg per serving
Calcium Lactate 10 Grains (650 mg), Wonder Laboratories
Calcium Lactate 10 Grains (650 mg)Wonder Laboratories · Tablet or Pill178 mg per serving
C
Calcium Magnesium Liquid Natural Blueberry FlavorVitamin World · Liquid600 mg per serving
C
Calcium Soft ChewsNutrition Now · Other (e.g. tea bag)500 mg per serving
P
Phyto GreensVita Plus · Capsule200 mg per serving
A
Aloe Vera Juice Whole LeafLily of the Desert · Liquid35 mg per serving
E
Ester-C 500 Plus BioflavonoidsBluebonnet · Other (e.g. tea bag)50 mg per serving
N
NO3 Black ChromeCellucor · Capsule10 mg per serving
N
NO3 Black ChromeCellucor · Capsule10 mg per serving
C
Coral Calcium Plus Vitamin D3 & MagnesiumNature's Bounty · Capsule370 mg per serving
C
Calcium Gummy VitaminsCVS Pharmacy · Gummy or Jelly500 mg per serving
A
Amplified Creatine XXX Blue RaspberryGNC Pro Performance · Powder48 mg per serving
B
Beef Amino Complex 750 mgPrecision Engineered · Other (e.g. tea bag)136 mg per serving
F
Flavonoid 1,000DaVinci Laboratories Of Vermont · Tablet or Pill29 mg per serving
O
Original Papaya EnzymePuritan's Pride · Tablet or Pill157 mg per serving
O
Original Papaya EnzymeRadiance · Tablet or Pill157 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).