D-400
by 21st Century · tablet or pill · 100 tablets
- Off the market since June 2019 (NIH)
- UPC 7 40985 22661 2
- DSLD label 11178
- Serving 1 tablet
D-400 by 21st Century lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 400 IU (10 mcg) of vitamin D3 and 185 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on August 24, 2012.
What is in D-400?
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 | 400 IU (10 mcg) | 100% | 57% of 14,175 products listing vitamin D give more (median 15 mcg). |
| Calciumas Calcium CarbonateCalcium (Form: from Calcium Carbonate) | 185 mg | 18% | Higher than 63% of 17,831 products listing calcium (median 115 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 11178 (entered August 24, 2012), 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?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
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.
- Mil-Gel Chewable TabletsConfidence USA same ingredients
- Mil-Gel SoftgelsConfidence USA same ingredients
- Calcium CitrateDC same ingredients
- Calcium Citrate 950 mgWonder Laboratories same ingredients
- Calcium Citrate 950 mgDC same ingredients
- D3 10 mcg (400 IU)21st Century 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 dietary supplement, take one (1) tablet daily with any meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage.
- Warnings
- Keep out of reach of children.
- Do not use if product appears to be tampered with or seal is broken.
- Allergens and what it does not contain
- Gluten Free.
- No added Sugar, Salt, Yeast, Artificial Flavors, Colors or Preservatives.
- Storage
- Store at room temperature.
Source: label statements in DSLD label 11178.
What else is on the label?
Other ingredients: Cellulose, Silicon Dioxide, Croscarmellose Sodium, Stearic Acid, Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): MADE IN USA.
How many labels does D-400 have?
One label is on file, entered on August 24, 2012.
- Label 11178 (current) Entered August 24, 2012 · off the market June 28, 2019 · 100 tablets · UPC 7 40985 22661 2
DSLD also links this label to: D3 10 mcg (400 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.