PlainVitamins

Magnesium Citrate Pure Powder

by NOW · powder · 8 ounces

  • On the market (NIH)
  • UPC 7 33739 01295 1
  • DSLD label 335272
  • Serving 3 g (1 level teaspoon)
  • 76 servings

Magnesium Citrate Pure Powder by NOW lists 2 ingredients, 2 with an amount per serving of 3 g, such as 450 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.

What is in Magnesium Citrate Pure Powder?

Each row as the label prints it, per serving of 3 g. 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).

Magnesium Citrate Pure Powder: Supplement Facts rows against the market (DSLD label 335272, January 2026 release)
IngredientAmount% DVAmong products listing it
Magnesiumelemental450 mg107%Magnesium in Magnesium Citrate Pure Powder against 14,003 products450 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg450 mg

Higher than 95% of 14,003 products listing magnesium (median 86 mg). 1.3 times the adult UL a day.

Magnesium Citrate3,000 mg

Source: NIH ODS Dietary Supplement Label Database, label 335272 (entered September 25, 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:

  • At 1 serving a day, the most its directions give, the label lists 450 mg of magnesium, 1.3 times the adult Tolerable Upper Intake Level.

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: Mix 1 level teaspoon of powder into at least 8 oz. of cold water or clear liquid until fully dissolved. To fully dissolve, add powder slowly while stirring. Once prepared, this mixture may be added to smoothies or juices as desired. Take once daily with a meal. Pure magnesium citrate powder can increase the temperature of liquids upon contact; therefore, the recommended serving MUST be mixed into at least 8 oz. of cold liquid to neutralize this reaction prior to ingestion.
Warnings
Caution: This product must be dissolved into at least 8 oz. of cold water or clear liquid before consuming. Do not breathe powder and avoid contact with skin and eyes.
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, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-GMO
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
This product is sold by weight not volume. Store in a cool, dry place after opening.

Source: label statements in DSLD label 335272.

What else is on the label?

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

How many labels does Magnesium Citrate Pure Powder have?

5 labels are on file under this name since August 25, 2015: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 335272 (current) Entered September 25, 2025 · on the market · 8 ounces · UPC 7 33739 01295 1
  2. Label 313605 Entered May 23, 2024 · off the market January 21, 2025 · 8 ounces · UPC 7 33739 01295 1
  3. Label 204966 Entered July 24, 2019 · off the market February 12, 2024 · 8 oz. · UPC 7 33739 01295 1
  4. Label 72116 Entered April 25, 2017 · off the market December 6, 2018 · 8 oz. · UPC 7 33739 01295 1
  5. Label 49965 Entered August 25, 2015 · off the market March 7, 2017 · 8 oz. · UPC 7 33739 01295 1

DSLD also links this label to: Magnesium Citrate (image difference, same product), Magnesium Citrate (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 NOW FOODS (packager), Bloomingdale, IL. All NOW products.

Where next?