Calcium/Magnesium

by Kirkman · capsule · 120 capsules

  • Off the market since August 2023 (NIH)
  • UPC 8 12325 02212 0
  • DSLD label 296963
  • Serving 2 capsules
  • 60 servings

Calcium/Magnesium by Kirkman lists 3 ingredients, 3 with an amount per serving of 2 capsules, such as 3 mcg (120 IU) of vitamin D3, 300 mg of calcium and 150 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on December 14, 2023.

What is in Calcium/Magnesium?

Each row as the label prints it, per serving of 2 capsules. 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/Magnesium: Supplement Facts rows against the market (DSLD label 296963, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin D3as Cholecalciferol100 IU3 mcg (120 IU)15%Vitamin D in Calcium/Magnesium against 14,175 products3 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg3 mcg

92% of 14,175 products listing vitamin D give more (median 15 mcg).

Calciumas Calcium Carbonate, Calcium Citrate300 mg23%Calcium in Calcium/Magnesium against 17,831 products300 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg300 mg

Higher than 77% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium Glycinate, Magnesium Oxide150 mg36%Magnesium in Calcium/Magnesium against 14,003 products150 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg150 mg

Higher than 70% of 14,003 products listing magnesium (median 86 mg).

Source: NIH ODS Dietary Supplement Label Database, label 296963 (entered December 14, 2023), 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:

  • 92% of the 14,175 products that print an amount of vitamin D list more than its 3 mcg (120 IU) of vitamin D (median 15 mcg (600 IU)).

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
Suggested use: Take two capsules daily or as directed by a physician.
Warnings
Keep out of the reach of children.
Caution: magnesium supplements can cause changes in stool consistency and bowel habits. If this occurs, discontinue use and discuss this matter with your physician.
Allergens and what it does not contain
Free of: milk, eggs, fish, shellfish, tree nuts, peanuts, wheat or soy
Gluten-free
Storage
Important: Store in a cool dry place and tightly capped.

Source: label statements in DSLD label 296963.

What else is on the label?

Other ingredients: Hypromellose, Water, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Ultra Tested; cGMP Good Manufacturing Products Consistent Quality.

How many labels does Calcium/Magnesium have?

One label is on file, entered on December 14, 2023.

  1. Label 296963 (current) Entered December 14, 2023 · off the market August 19, 2023 · 120 capsules · UPC 8 12325 02212 0

DSLD also links this label to: Calcium & Magnesium with Vitamin D (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 Kirkman (manufacturer), Lake Oswego, OR. All Kirkman products.

Where next?