Magtein Magnesium L-Threonate
by Swanson Ultra · capsule · 90 veggie capsules
- Off the market since July 2018 (NIH)
- UPC 0 87614 02700 5
- DSLD label 177930
- Serving 1 vegetarian capsule (in the Afternoon); amounts per 2 vegetarian capsules
Magtein Magnesium L-Threonate by Swanson Ultra lists 4 ingredients, 4 with an amount per serving of 2 vegetarian capsules, such as 96 mg of magnesium, 1.34 g of magtein magnesium L-threonate, 48 mg of magnesium and 670 mg of magtein magnesium L-threonate. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2018.
What is in Magtein Magnesium L-Threonate?
Each row as the label prints it, per serving of 2 vegetarian capsules. 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 Magtein Magnesium L-ThreonateMagnesium (Form: from Magtein Magnesium L-Threonate) | 96 mg | 23% | Higher than 70% of 14,003 products listing magnesium (median 86 mg). |
| Magtein Magnesium L-Threonate | 1.34 g | ||
| Magnesiumas Magtein Magnesium L-ThreonateMagnesium (Form: from Magtein Magnesium L-Threonate) | 48 mg | 11% | |
| Magtein Magnesium L-Threonate | 670 mg |
Source: NIH ODS Dietary Supplement Label Database, label 177930 (entered June 25, 2018), 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?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
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.
- NeuroMagDesigns for Health same ingredients
- Magnesium L-ThreonateDr. Mercola same ingredients
- Neuro-Mag Magnesium L-Threonate Tropical Punch FlavorLife Extension same ingredients
- Magtein Magnesium L-Threonate PowderNootropics Depot same ingredients
- Neuro-Mag Tropical Punch FlavorLife Extension · off the market same ingredients
- MagPure Brain BoostJigsaw Health · 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 Use: As a dietary supplement, take one veggie capsule in the afternoon and two veggie capsules in the evening with water.
- Warnings
- Do not use if seal is broken.
- Keep out of reach of children.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 177930.
What else is on the label?
Other ingredients: Brown Rice Flour, Hypromellose.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): V Vegetarian Formula Guaranteed purity & potency.
How many labels does Magtein Magnesium L-Threonate have?
One label is on file, entered on June 25, 2018.
- Label 177930 (current) Entered June 25, 2018 · off the market July 31, 2018 · 90 veggie capsules · UPC 0 87614 02700 5
DSLD also links this label to: Magnesium L-Threonate (image difference, same product), Magnesium L-Threonate (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 Swanson Health Products (distributor), Fargo, ND. All Swanson Ultra products.