Magnesium 500 mg
by Rexall · tablet or pill · 30 tablets
- On the market (NIH)
- UPC 3 01220 05538 3
- DSLD label 44556
- Serving 1 tablet
Magnesium 500 mg by Rexall lists one ingredient: 500 mg of magnesium per serving of 1 tablet. Its current label entered the NIH Dietary Supplement Label Database on April 24, 2015.
What is in Magnesium 500 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Magnesiumas Magnesium OxideMagnesium (Form: as Magnesium Oxide) | 500 mg | 125% | Higher than 96% of 14,003 products listing magnesium (median 86 mg). 1.4 times the adult UL a day. |
Source: NIH ODS Dietary Supplement Label Database, label 44556 (entered April 24, 2015), 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?
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 500 mg of magnesium, 1.4 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 500GNC · off the market same ingredients
- Genuine Phillips' CapletsBayer Phillips' same ingredients
- High Potency Magnesium 500 mgGood 'N Natural · off the market same ingredients
- High Potency Magnesium 500 mgNature's Bounty · off the market same ingredients
- Magnesium Malate ChelateDesigns for Health same ingredients
- Magnesium 500 mg High PotencySundown Naturals · 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
- DIRECTIONS: FOR ADULTS, TAKE ONE (1) TABLET DAILY, PREFERABLY WITH A MEAL.
- Warnings
- KEEP OUT OF REACH OF CHILDREN.
- TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.
- WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
- Discontinue use and consult your doctor if any adverse reactions occur.
- Allergens and what it does not contain
- No Gluten, No Yeast, No Wheat, No Milk or Milk Derivatives, No Lactose, No Sugar, No Preservatives, No Soy, No Artificial Flavor, No Sodium.
- Storage
- STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.
Source: label statements in DSLD label 44556.
What else is on the label?
Other ingredients: Cellulose, Dicalcium Phosphate, Citric Acid, Croscarmellose, Contains <2% of:.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): QUALITY GUARANTEED.
How many labels does Magnesium 500 mg have?
One label is on file, entered on April 24, 2015.
- Label 44556 (current) Entered April 24, 2015 · on the market · 30 tablets · UPC 3 01220 05538 3
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Rexall, Inc. (manufacturer), Deerfield Beach, FL. All Rexall products.