DeliveredDose

Optimum Nutrition Magnesium Glycinate Capsules (90 capsules)

C · Claimed
$24.99 at Optimum Nutrition (direct) · $0.555 per 200mg
Delivery adds $5.99
Buy at Optimum Nutrition (direct)

Label read Oct 17, 2026. Where the data comes from

Is Optimum Nutrition third party tested? · Which magnesium brands are third-party tested?

Cost

$0.555
per 200mg elemental magnesium
$24.99
per container · Optimum Nutrition (direct)
$16.66
a month at one dose a day
Amount per serving
200mg elemental magnesium
Upper intake level
Adults, 350mg a day, from supplements and medications; magnesium in food does not count toward it. One serving of this product holds 200mg, less than that level on its own.
An upper intake level is the largest daily intake unlikely to cause harm for most people. It is not a limit on treatment. Higher amounts are sometimes used, but only under the direction and supervision of a health care provider. It is not a recommendation about what to take.
Servings per container
45
Units needed per dose
2.00 capsules
Doses per container
45.0
Cost per serving
$0.555
  • Elemental magnesium as printed on this package's own Supplement Facts panel image (Servings Per Container 45): "Magnesium (as Magnesium glycinate) 200 mg 48%" per 2-capsule serving. The panel prints no compound weight, so none is recorded and nothing is derived. The panel names one salt and no second salt. The front prints "90 CAPSULES" and "45 SERVINGS", 45 servings of 2 capsules. The capsule is gelatin, so the product is not vegan or vegetarian.

Delivery

Delivery cost
$5.99
Below the $75.00 free-delivery threshold; $50.01 more would make delivery free.
Cost per dose delivered
$0.688
To get free delivery
Spend $50.01 more at Optimum Nutrition (direct)
Delivery policy: Optimum Nutrition (direct), Optimum Nutrition (direct) delivery terms, re-read October 17, 2026 · checked Oct 17, 2026
Buying more than one? Calculate the order

Change the quantity to see the actual container subtotal and whether it reaches the recorded free-delivery threshold.

Container subtotal
$24.99
Delivery
$5.99
Order total, before tax
$30.98
Per 200mg elemental magnesium, delivery included
$0.688

45 labeled servings in this order. Comparison doses are a price yardstick, not advice about how much to take.

Unit price checked Oct 17, 2026.
View this package at Optimum Nutrition (direct) →

Set the quantity at the retailer; this calculator does not add items to a cart. Uses the recorded unit price with no coupon or quantity discount. Tax is extra. Delivery terms apply to the contiguous US unless the policy says otherwise.

Delivery policy: Optimum Nutrition (direct), Optimum Nutrition (direct) delivery terms, re-read October 17, 2026 · checked Oct 17, 2026
Delivery terms and limits

Standard delivery in the US is free on orders over $75 and costs $5.99 below that, from the delivery chart on Optimum Nutrition's Delivery Information page, read October 2, 2026. The storefront's announcement bar has read "Free shipping on orders above $75" since at least September 7, 2026. Subscription orders also ship free at any size, but that is a different purchase from the one-time price shown here. Read again on October 17, 2026, with the same chart row.

Where to buy

Optimum Nutrition (direct) · lowest recorded available price
we earn nothing on this link
checked today
$24.99Buy

Ordered by price, lowest first, and labeled so you can see what each link earns us. Commission is never an input to that ordering. If the cheapest retailer pays us nothing, that is still the one we send you to. No link on this page earns us anything; every Buy button is a plain retailer link.

Price history

Latest recorded price: $24.99 at Optimum Nutrition (direct), checked . First checked on Oct 17.

We check each price about once a day, so this is the range we recorded, not necessarily every price there has been. It says what changed, not why, and nothing about where the price goes next.

Verification, Tier C: Claimed, not confirmed

Two different things reach this level, and the product page says which. Either the label or the product page names an independent third-party program, such as NSF Certified for Sport, NSF Contents Certified or Informed Sport, and we have not confirmed a listing for this package in that program’s own database; or the only test results available are ones the manufacturer or a lab it commissioned published, which may well be accurate and is simply not independent. A mark printed on a package is not the same thing as a listing anyone can open, and that gap is what this level records. It is not a finding against the product.

  • The testing claim we recorded for this product, with where it appeared: Informed Choice mark ("CHOICE", "REGULARLY TESTED FOR BANNED SUBSTANCES") printed on the label's side face; the front also prints "PERFORMANCE TESTED QUALITY", which names no program. We found no published result to check it against.
  • Checked NSF Certified for Sport database on Oct 17, 2026: not listed.
  • Checked USP Verified database on Sep 21, 2026: not listed.
NSF Certified for Sport: checked, not listed
Checked and absent. NSF's whole Certified for Sport directory was read on Oct 17, 2026, 2,581 listings, and holds two Optimum Nutrition rows, 1256427 "GOLD STANDARD 100% WHEY DOUBLE RICH CHOCOLATE" and 1484223 "Gold Standard 100% Whey Vanilla Ice Cream", both the Gold Standard 100% Whey line. There is no row for magnesium glycinate, or any magnesium product, under this brand. The label on this package prints no NSF mark. Absence from a database is not a failed test.
Source: NSF Certified for Sport, NSF Certified for Sport directory, full read, October 17, 2026 · checked Oct 17, 2026
USP Verified: checked, not listed
Checked and absent. USP's own Verified Products directory was read page by page in a browser on Sep 21, 2026: 16 pages, 159 products, 16 brands, captured in this site's directory snapshot. This brand does not appear in the directory or in its brand facet, and no product in it names this brand. USP verifies the products a company submits to it, so this records which products were submitted and nothing else. Absence from a database is not a failed test.
Source: USP, USP Verified Products directory, full read, September 21, 2026 · checked Sep 21, 2026
Informed Sport: checked, not listed
Optimum Nutrition is on LGC's own Informed Sport product list of October 2026, read on Oct 3, 2026, with nine lines printed under the brand, and none of them names this product. Absence from a list is not a failed test: Informed Sport certifies the products a company submits, so this records only that this product is not in the program's published list on that date.
Source: LGC (Informed Sport), Informed Sport product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026
Informed Choice: checked, not listed
Checked and absent. LGC’s own Informed Choice product list of October 2026, read on Oct 3, 2026, prints 49 lines under Optimum Nutrition, and none of them names magnesium. This package’s own label prints the Informed Choice mark ("CHOICE", "REGULARLY TESTED FOR BANNED SUBSTANCES"), which is recorded on the product as the maker’s claim and is what a reader can take to LGC’s list; on the date it was read that list held no line for this product. The list is published monthly and prints no date for each product, so a product added after that read would appear on a later list. Absence from a list is not a failed test.
Source: LGC (Informed Choice), Informed Choice product list, October 2026 PDF, as read October 3, 2026 · checked Oct 3, 2026

No test reports located for this product.

Not established: Heavy-metal testing, Label-accuracy testing.
Absence of data is not evidence that a product is clean. It means nobody has published a result we could find.

Label

Form
capsule
Serving size
2 capsules
Active ingredient
Magnesium Glycinate: 200mg as labeled
Elemental magnesium as printed on this package's own Supplement Facts panel image (Servings Per Container 45): "Magnesium (as Magnesium glycinate) 200 mg 48%" per 2-capsule serving. The panel prints no compound weight, so none is recorded and nothing is derived. The panel names one salt and no second salt. The front prints "90 CAPSULES" and "45 SERVINGS", 45 servings of 2 capsules. The capsule is gelatin, so the product is not vegan or vegetarian.
Vegan
No
Gluten free
Unknown
Allergens
Unknown
Other ingredients
Gelatin (capsule), Cellulose Gel, Magnesium Stearate, Silicon Dioxide
Label facts rest on: Optimum Nutrition, Supplement Facts panel and bottle faces: Optimum Nutrition Magnesium Glycinate Capsules, 90 capsules · checked Oct 17, 2026

Other tracked packages

Same category and format and, for vitamin D, the same labeled strength. Different recorded ingredient-form lists are kept separate. Ordered by container price before delivery; only fresh recorded prices are shown. Formulas, flavors and allergens may differ: check each label. These are browsing options, not recommended substitutes.

Compare every magnesium glycinate we price, per 200mg elemental magnesium →

What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.