PlainVitamins

Calcium & Magnesium

by Butterfly Express · softgel capsule · 120 softgels

  • On the market (NIH)
  • UPC 7 33739 41251 5
  • DSLD label 337005
  • Serving 2 softgels
  • 60 servings

Calcium & Magnesium by Butterfly Express lists 4 ingredients, 4 with an amount per serving of 2 softgels, such as 10 mcg (400 IU) of vitamin D3, 667 mg of calcium, 333 mg of magnesium and 25 mg of zinc. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2025.

What is in Calcium & Magnesium?

Each row as the label prints it, per serving of 2 softgels. 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 337005, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin D3as Cholecalciferol400 IU10 mcg (400 IU)50%Vitamin D in Calcium & Magnesium against 14,175 products10 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg10 mcg

57% of 14,175 products listing vitamin D give more (median 15 mcg).

Calciumas Calcium Carbonate, Calcium Citrate667 mg51%Calcium in Calcium & Magnesium against 17,831 products667 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg667 mg

Higher than 94% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium Citrate, Magnesium Oxide333 mg79%Magnesium in Calcium & Magnesium against 14,003 products333 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg333 mg

Higher than 90% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc Oxide25 mg227%Zinc in Calcium & Magnesium against 13,186 products25 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg25 mg

Higher than 85% of 13,186 products listing zinc (median 11 mg).

Source: NIH ODS Dietary Supplement Label Database, label 337005 (entered August 22, 2025), 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:

  • Its 667 mg of calcium is higher than 94% of the 17,831 calcium products that print an amount; 1,132 list more.
  • Its 333 mg of magnesium is higher than 90% of the 14,003 magnesium products that print an amount; 1,335 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?

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 usage: Take 2 softgels daily with food.
Warnings
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Not manufactured with wheat, gluten, milk, egg, fish or shellfish ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Not manufactured with wheat, gluten, milk, egg, fish or shellfish ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 337005.

What else is on the label?

Other ingredients: Rice Bran Oil, Bovine Gelatin, Glycerin, Water, Zinc Oxide, Sunflower Lecithin, Beeswax.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP.

How many labels does Calcium & Magnesium have?

2 labels are on file under this name since February 22, 2024: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 337005 (current) Entered August 22, 2025 · on the market · 120 softgels · UPC 7 33739 41251 5
  2. Label 302893 Entered February 22, 2024 · off the market June 4, 2025 · 120 softgels · UPC 7 33739 41251 5

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Butterfly Express (distributor), Clifton, Idaho. All Butterfly Express products.

Where next?