PlainVitamins

Calcium 1000 mg

by 21st Century · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 7 40985 27070 7
  • DSLD label 334868
  • Serving 1 tablet
  • 90 servings

Calcium 1000 mg by 21st Century lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 20 mcg (800 IU) of vitamin D3 and 1,000 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on April 24, 2025.

What is in Calcium 1000 mg?

Each row as the label prints it, per serving of 1 tablet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Calcium 1000 mg: Supplement Facts rows against the market (DSLD label 334868, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin D3as Cholecalciferol800 IU20 mcg (800 IU)100%Vitamin D in Calcium 1000 mg against 14,175 products20 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg20 mcg

Higher than 51% of 14,175 products listing vitamin D (median 15 mcg).

Calciumas Calcium Carbonate1,000 mg77%Calcium in Calcium 1000 mg against 17,831 products1,000 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg1,000 mg

Higher than 95% of 17,831 products listing calcium (median 115 mg).

Source: NIH ODS Dietary Supplement Label Database, label 334868 (entered April 24, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 1,000 mg of calcium is higher than 95% of the 17,831 calcium products that print an amount; 314 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: As a calcium supplement, adults take one (1) tablet daily with any meal or as directed by a healthcare provider.
Warnings
Do not exceed recommended dosage. Stop use and contact a physician if adverse reactions occur. Do not use if product appears to be tampered with or seal is broken.
Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
Keep out of reach of children.
Allergens and what it does not contain
No added yeast or artificial flavors.
Gluten free | Non-GMO
Storage
Store at room temperature.

Source: label statements in DSLD label 334868.

What else is on the label?

Other ingredients: Gum Acacia, Croscarmellose Sodium, FD&C Blue #2 Carmine, FD&C Yellow #5, FD&C Yellow #6, Magnesium Silicate, Magnesium Stearate, Polyethylene Glycol, Polyvinyl Alcohol, Stearic Acid, Titanium Dioxide.

How many labels does Calcium 1000 mg have?

2 labels are on file under this name since September 24, 2019: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 334868 (current) Entered April 24, 2025 · on the market · 90 tablets · UPC 7 40985 27070 7
  2. Label 206637 Entered September 24, 2019 · off the market April 23, 2024 · 90 tablets · UPC 7 40985 27070 7

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names 21st Century HealthCare, Inc. (manufacturer), Tempe, AZ. All 21st Century products.

Where next?