Dyna-Cal Extra-Strength Natural Calcium/Magnesium Complex
by Douglas Laboratories · tablet or pill · 250 tablets
- On the market (NIH)
- UPC 3 10539 01239 0
- DSLD label 9832
- Serving 4 tablets
- 62 servings
Dyna-Cal Extra-Strength Natural Calcium/Magnesium Complex by Douglas Laboratories lists 12 ingredients, 7 with an amount per serving of 4 tablets, such as 80 mg of vitamin C, 1,000 IU (25 mcg) of vitamin D3, 20 IU of vitamin E and 1,500 mg of calcium; 5 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on June 1, 2012.
What is in Dyna-Cal Extra-Strength Natural Calcium/Magnesium Complex?
Each row as the label prints it, per serving of 4 tablets. 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 Cas Ascorbic Acid | 80 mg | 133% | 61% of 18,583 products listing vitamin C give more (median 100 mg). |
| Vitamin D3 | 1,000 IU (25 mcg) | 250% | Higher than 59% of 14,175 products listing vitamin D (median 15 mcg). |
| Vitamin E | 20 IU | 67% | 71% of 6,459 products listing vitamin E give more (median 30 IU). |
| Calciumas Calcium Carbonate, Calcium Caseinate, Calcium CitrateCalcium (Form: from Calcium Carbonate, Calcium Citrate, Calcium Caseinate) | 1,500 mg | 150% | Higher than over 99% of 17,831 products listing calcium (median 115 mg). |
| Magnesiumas Magnesium Citrate, Magnesium OxideMagnesium (Form: from Magnesium Oxide, Magnesium Citrate) | 420 mg | 105% | Higher than 95% of 14,003 products listing magnesium (median 86 mg). 1.2 times the adult UL a day. |
| Manganeseas Manganese SulfateManganese (Form: from Manganese Sulfate) | 10 mg | 500% | Higher than 93% of 7,016 products listing manganese (median 2 mg). |
| Proprietary Blend | 120 mg | ||
| Betain HCl | in the blend, no amount given | ||
| Glutamic Acid Hydrochloride | in the blend, no amount given | ||
| Alfalfa | in the blend, no amount given | ||
| Hydrolized Soy Protein | in the blend, no amount given | ||
| Lecithin | in the blend, no amount given | ||
| Boronas Boron CitrateBoron (Form: as Boron Citrate) | 400 mcg | 73% of 3,339 products listing boron give more (median 1 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 9832 (entered June 1, 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?
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 1,500 mg of calcium is higher than over 99% of the 17,831 calcium products that print an amount; 60 list more.
- At 1 serving a day, the most its directions give, the label lists 420 mg of magnesium, 1.2 times the adult Tolerable Upper Intake Level.
- Its 10 mg of manganese is higher than 93% of the 7,016 manganese products that print an amount; 228 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?
The products whose ingredient lists overlap most with Dyna-Cal Extra-Strength Natural Calcium/Magnesium Complex's, rare ingredients counting for more.
- Dyna-CalDouglas Laboratories 9 shared, 61% alike
- Cal Mag 750DNA Dynamic Nutritional Associates 10 shared, 51% alike
- Calcium Magnesium ComplexThe Vitamin Shoppe 8 shared, 47% alike
- Cal/Mag 2001 Calcium Two To OnePureFormulas · off the market 6 shared, 38% alike
- Cal/Mag 1001 Calcium One To OneDouglas Laboratories · off the market 6 shared, 38% alike
- Cal/Mag 2001 Calcium Two To OneDouglas Laboratories · off the market 6 shared, 38% alike
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
- Suggested Usage: As a dietary supplement, adults take 4 tablets daily with meals or as directed by physician.
- Warnings
- Tamper resistant package, do not use if outer seal is missing.
- KEEP OUT OF REACH OF CHILDREN.
- Allergens and what it does not contain
- This product contains NO yeast, wheat, gluten, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.
- Storage
- For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)
Source: label statements in DSLD label 9832.
What else is on the label?
Other ingredients: Cellulose, Vegetable Stearate, Silica.
How many labels does Dyna-Cal Extra-Strength Natural Calcium/Magnesium Complex have?
2 labels are on file under this name since June 1, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 9832 (current) Entered June 1, 2012 · on the market · 250 tablets · UPC 3 10539 01239 0
- Label 9831 Entered June 1, 2012 · on the market · 100 tablets · UPC 3 10539 01579 7
DSLD also links this label to: Dyna-Cal (package size 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 Douglas Laboratories (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.