Oyster Shell Calcium 500 mg
by Sundown Naturals · other (e.g. tea bag) · 120 caplets
- On the market (NIH)
- UPC 0 30768 12429 8
- DSLD label 30330
- Serving 1 caplet
Oyster Shell Calcium 500 mg by Sundown Naturals lists one ingredient: 500 mg of calcium per serving of 1 caplet. Its current label entered the NIH Dietary Supplement Label Database on February 26, 2014.
What is in Oyster Shell Calcium 500 mg?
Each row as the label prints it, per serving of 1 caplet. 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 |
|---|---|---|---|
| Calciumas OysterCalcium (Form: from Oyster PlantPart: shell) | 500 mg | 50% | Higher than 85% of 17,831 products listing calcium (median 115 mg). Per day at the most servings: 1,500 mg. |
| Sodium | 5 mg | 1% | 89% of 14,514 products listing sodium give more (median 55 mg). Per day at the most servings: 15 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 30330 (entered February 26, 2014), 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 2 to 3 servings 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?
2 products list the very same ingredients; the nearest amounts come first.
- Calcium CitratePuritan's Pride same ingredients
- Oxy-CapsEarth's Bounty 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: FOR ADULTS, TAKE ONE (1) CAPLET TWO OR THREE TIMES DAILY, PREFERABLY WITH MEALS.
- Warnings
- KEEP OUT OF REACH OF CHILDREN.
- TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.
- WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
- Discontinue use and consult your doctor if any adverse reactions occur.
- Allergens and what it does not contain
- No Artificial Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Milk, No Lactose, No Soy, No Gluten, No Wheat, No Yeast.
- Storage
- STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.
Source: label statements in DSLD label 30330.
What else is on the label?
Other ingredients: Vegetable Cellulose, Contains Less Than 2% of.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): {Bottle} PLEASE RECYCLE; GUARANTEED LABORATORY TESTED QUALITY.
How many labels does Oyster Shell Calcium 500 mg have?
One label is on file, entered on February 26, 2014.
- Label 30330 (current) Entered February 26, 2014 · on the market · 120 caplets · UPC 0 30768 12429 8
DSLD also links this label to: Calcium 500 mg Natural Oyster Shell (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 Rexall Sundown, Inc. (manufacturer), Boca Raton, FL. All Sundown Naturals products.