High Potency Calcium 1000 +D3
by 21st Century · tablet or pill · 90 tablets
- Off the market since June 2019 (NIH)
- UPC 7 40985 27070 7
- DSLD label 43604
- Serving 1 tablet
High Potency Calcium 1000 +D3 by 21st Century lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 800 IU (20 mcg) of vitamin D3 and 1,000 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2015.
What is in High Potency Calcium 1000 +D3?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin D3as Cholecalciferol | 800 IU (20 mcg) | 200% | Higher than 51% of 14,175 products listing vitamin D (median 15 mcg). |
| Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate) | 1,000 mg | 100% | Higher than 95% of 17,831 products listing calcium (median 115 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 43604 (entered March 25, 2015), version 9.4.0. See the label on DSLD. 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.
- Oyster Shell Calcium 500 +D Extra Vitamin D Value Size21st Century same ingredients
- Calcium 500 +D21st Century same ingredients
- Calcium 1000 +D21st Century · off the market same ingredients
- Calcium Citrate Plus Vitamin D3Bluebonnet · off the market same ingredients
- Calcium 1000 mg plus D3 20 mcg (800 IU)21st Century same ingredients
- Calcium Citrate & Vitamin D3Bluebonnet same ingredients
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, take one (1) tablet daily with any meal or as directed by your healthcare provider.
- Warnings
- Do not exceed recommended dosage.
- Stop use and contact a physician if adverse reactions occur.
- Keep out of reach of children.
- Warning: Consult a healthcare provider prior to use if: pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
- Do not use if product appears to be tampered with or seal is broken.
- Allergens and what it does not contain
- No added Sugar, Yeast, Preservatives or Artificial Flavors.
- Storage
- Store at room temperature.
Source: label statements in DSLD label 43604.
What else is on the label?
Other ingredients: Croscarmellose Sodium, Polyvinyl Alcohol, Titanium Dioxide, PEG, Stearic Acid, Talc, Magnesium Stearate, Artificial Colors, Dextrin, Dextrose, Lecithin, Sodium Citrate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): LABORATORY TESTED GUARANTEED QUALITY.
How many labels does High Potency Calcium 1000 +D3 have?
One label is on file, entered on March 25, 2015.
- Label 43604 (current) Entered March 25, 2015 · off the market June 28, 2019 · 90 tablets · UPC 7 40985 27070 7
DSLD also links this label to: Calcium 1000 mg (image difference, same product), Calcium 1000 mg plus D3 20 mcg (800 IU) (image difference, same product).
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.