PlainVitamins

Calcium & Magnesium 300 mg

by Source Naturals · tablet or pill · 100 tablets

  • On the market (NIH)
  • UPC 0 21078 00303 8
  • DSLD label 211728
  • Serving 1 tablet

Calcium & Magnesium 300 mg by Source Naturals lists 3 ingredients, 3 with an amount per serving of 1 tablet, such as 500 IU (12.5 mcg) of vitamin D3, 200 mg of calcium and 100 mg of magnesium, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on December 22, 2019.

What is in Calcium & Magnesium 300 mg?

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).

Calcium & Magnesium 300 mg: Supplement Facts rows against the market (DSLD label 211728, January 2026 release)
IngredientAmount% DVAmong products listing it
Total Carbohydrates1 g1%Carbohydrate in Calcium & Magnesium 300 mg against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g). Per day at the most servings: 3 g.

Vitamin D3as Cholecalciferol500 IU (12.5 mcg)125%Vitamin D in Calcium & Magnesium 300 mg against 14,175 products12.5 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg12.5 mcg

53% of 14,175 products listing vitamin D give more (median 15 mcg). Per day at the most servings: 37.5 mcg.

Calciumas Calcium Amino Acid ChelateCalcium (Form: as Calcium Amino Acid Chelate)200 mg20%Calcium in Calcium & Magnesium 300 mg against 17,831 products200 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg200 mg

Higher than 64% of 17,831 products listing calcium (median 115 mg). Per day at the most servings: 600 mg.

Magnesiumas Magnesium Amino Acid ComplexMagnesium (Form: as Magnesium Amino Acid Complex)100 mg25%Magnesium in Calcium & Magnesium 300 mg against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 300 mg.

Source: NIH ODS Dietary Supplement Label Database, label 211728 (entered December 22, 2019), 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 1 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?

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: 1 tablet 1 to 3 times daily with meals.
Warnings
Contains soy.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Allergens and what it does not contain
Contains no yeast, egg, gluten or wheat. Contains no artificial color, flavor or fragrance.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 211728.

What else is on the label?

Other ingredients: Sorbitol, modified Cellulose Gum, Stearic Acid, Silica.

How many labels does Calcium & Magnesium 300 mg have?

2 labels are on file under this name since December 22, 2019: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 211732 Entered December 22, 2019 · off the market December 22, 2021 · 250 tablets · UPC 0 21078 00304 5
  2. Label 211728 (current) Entered December 22, 2019 · on the market · 100 tablets · UPC 0 21078 00303 8

DSLD also links this label to: Calcium & Magnesium (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 Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?