Magnesium Ascorbate
by NOW · powder · 8 oz.
- Off the market since July 2015 (NIH)
- UPC 7 33739 00756 8
- DSLD label 27951
- Serving 0.25 tsp (1 g)
- 227 servings
Magnesium Ascorbate by NOW lists 2 ingredients, 2 with an amount per serving of 0.25 tsp, such as 820 mg of vitamin C and 60 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on November 25, 2013.
What is in Magnesium Ascorbate?
Each row as the label prints it, per serving of 0.25 tsp. 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 |
|---|---|---|---|
| Vitamin Cas Magnesium AscorbateVitamin C (Form: from Magnesium Ascorbate) | 820 mg | 1,367% | Higher than 90% of 18,583 products listing vitamin C (median 100 mg). |
| Magnesiumas Magnesium AscorbateMagnesium (Form: from Magnesium Ascorbate) | 60 mg | 15% | 56% of 14,003 products listing magnesium give more (median 86 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 27951 (entered November 25, 2013), 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:
- Its 820 mg of vitamin C is higher than 90% of the 18,583 vitamin C products that print an amount; 1,760 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.
- Pure, Buffered Magnesium AscorbateNOW · off the market same ingredients
- Buffered Magnesium AscorbateNOW same ingredients
- Vitamin C Powder (Magnesium Ascorbate)Pharmax same ingredients
- Vitamin C PowderPharmax same ingredients
- Buffered Magnesium Ascorbate Vitamin C PowderSwanson Premium Brand · off the market same ingredients
- Magnesium AscorbateSource Naturals 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: As a dietary supplement, take 1/4 level teaspoon daily. Consider taking these other NOW(R) products: Citrus Bioflavonoid Caps, Pycnogenol(R) and Alpha Lipoic Acid.
- Consult physician if pregnant/nursing, taking medication, or have a medical condition.
- Warnings
- Caution: For adults only.
- Keep out of reach of children.
- Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut 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, soy, milk, egg, fish, shellfish or tree nut ingredients.
- Storage
- Store in a cool, dry place after opening.
Source: label statements in DSLD label 27951.
What else is on the label?
Other ingredients: None.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP QUALITY ASSURED.
How many labels does Magnesium Ascorbate have?
2 labels are on file under this name since October 25, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 27951 (current) Entered November 25, 2013 · off the market July 21, 2015 · 8 oz. · UPC 7 33739 00756 8
- Label 14473 Entered October 25, 2012 · off the market March 21, 2013 · 8 oz. · UPC 7 33739 00756 8
DSLD also links this label to: Pure, Buffered Magnesium Ascorbate (image difference, same product), Pure, Buffered Magnesium Ascorbate (image difference, same product), Magnesium Bisglycinate Powder (image difference, same product), Pure, Buffered Magnesium Ascorbate (image difference, same product), Magnesium Bisglycinate Powder (image difference, same product), Buffered Magnesium Ascorbate (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 (distributor), Bloomingdale, IL. All NOW products.