PlainVitamins

Mag L-Threonate

by Metagenics · capsule · 120 capsules

  • On the market (NIH)
  • UPC 7 55571 94872 4
  • DSLD label 295760
  • Serving 1 vegetarian capsule (in the morning); amounts per 2 vegetarian capsules
  • 60 servings

Mag L-Threonate by Metagenics lists 2 ingredients, 2 with an amount per serving of 2 vegetarian capsules, such as 98 mg of magnesium and 1.3 g of magtein. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in Mag 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).

Mag L-Threonate: Supplement Facts rows against the market (DSLD label 295760, January 2026 release)
IngredientAmount% DVAmong products listing it
Magnesiumas Magtein Magnesium L-Threonate98 mg23%Magnesium in Mag L-Threonate against 14,003 products98 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg98 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg).

Magteinas Magnesium L-Threonate1.3 g

Source: NIH ODS Dietary Supplement Label Database, label 295760 (entered August 23, 2023), 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?

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.

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: Take three capsules in divided doses daily: one capsule in the morning and two capsules two hours before sleep as a dietary supplement, or as directed by your healthcare practitioner.
Warnings
Caution: Do not use if pregnant or nursing.
Consult your healthcare practitioner if taking diuretics, antibiotics, or medications for Osteoporosis.
Keep out of the reach of children.
Practitioner Exclusive
Allergens and what it does not contain
This product is non-GMO, gluten-free, and vegetarian.
Certified Gluten Free GFCO.org (Gluten-Free Certification Organization)
Storage
Storage: Keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 295760.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Stearic Acid, Silica.

How many labels does Mag L-Threonate have?

4 labels are on file under this name since January 25, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 295760 (current) Entered August 23, 2023 · on the market · 120 capsules · UPC 7 55571 94872 4
  2. Label 265597 Entered May 19, 2022 · off the market September 7, 2022 · 120 capsules · UPC 7 55571 94872 4
  3. Label 216447 Entered March 24, 2020 · off the market October 1, 2021 · 120 capsules · UPC 7 55571 94872 4
  4. Label 212732 Entered January 25, 2020 · off the market December 27, 2019 · 120 capsules

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Metagenics (manufacturer), Gig Harbor, WA. All Metagenics products.

Where next?