Magnesium Caps 400 mg
by NOW · capsule · 180 veg capsules
- On the market (NIH)
- UPC 7 33739 01283 8
- DSLD label 313575
- Serving 1 veg capsule
- 180 servings
Magnesium Caps 400 mg by NOW lists one ingredient: 400 mg of magnesium per serving of 1 veg capsule. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2024.
What is in Magnesium Caps 400 mg?
Each row as the label prints it, per serving of 1 veg capsule. 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 |
|---|---|---|---|
| Magnesiumas Magnesium Aspartate, Magnesium Citrate, Magnesium Oxideelemental | 400 mg | 95% | Higher than 92% of 14,003 products listing magnesium (median 86 mg). 1.1 times the adult UL a day. |
Source: NIH ODS Dietary Supplement Label Database, label 313575 (entered October 24, 2024), 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 400 mg of magnesium, 1.1 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.
- Magnesium Citrate 200 mgVitabase same ingredients
- Magnesium Oxide 200 mgWindmill · off the market same ingredients
- Magnesium CitrateOL Olympian Labs · off the market same ingredients
- Triple Magnesium ComplexSwanson · off the market same ingredients
- Magnesium AsporotateSolaray · off the market same ingredients
- Magnesium Taurate 400 mgHolistic Healing Center · off the market same ingredients
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 1 capsule daily.
- 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, 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
- Store in a cool, dry place after opening.
Source: label statements in DSLD label 313575.
What else is on the label?
Other ingredients: Hypromellose, Rice Flour, Silicon Dioxide, Stearic Acid.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Triangle K (Kosher); Crescent H Halal GMP Quality Assured.
How many labels does Magnesium Caps 400 mg have?
5 labels are on file under this name since October 25, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 313575 (current) Entered October 24, 2024 · on the market · 180 veg capsules · UPC 7 33739 01283 8
- Label 70557 Entered February 24, 2017 · off the market February 12, 2024 · 180 veg capsules · UPC 7 33739 01283 8
- Label 55223 Entered January 25, 2016 · off the market November 30, 2016 · 180 veg capsules · UPC 7 33739 01283 8
- Label 51741 Entered October 22, 2015 · off the market November 24, 2015 · 180 capsules · UPC 7 33739 01283 8
- Label 14582 Entered October 25, 2012 · off the market September 30, 2015 · 180 capsules · UPC 7 33739 01283 8
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 (manufacturer), Bloomingdale, IL. All NOW products.