DeliveredDose

Nature Made Magnesium Extra Strength 400 mg (60 softgels)

D · None located
$14.29 at Nature Made (direct) · $0.119 per 200mg
Delivery adds $8.00
Buy at Nature Made (direct)

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

Is Nature Made third party tested? · Is Nature Made magnesium USP Verified? · Which magnesium brands are third-party tested?

Cost

$0.119
per 200mg elemental magnesium
$14.29
per container · Nature Made (direct)
$3.57
a month at one dose a day
Amount per serving
400mg 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 400mg, more 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
60
Units needed per dose
0.50 softgels
Doses per container
120.0
Cost per serving
$0.238
In whole units
1 softgel = 400mg for $0.238
This is the smallest whole number of softgels that holds at least one comparison dose. It is shown as a caveat and is deliberately not used in ranking, because rounding up changes the amount as well as the price.
  • One softgel holds 400 mg of elemental magnesium, 2 times the 200 mg comparison dose. Softgels cannot be split.
  • The panel prints "Magnesium (as Magnesium Oxide) 400 mg 95%" per serving of 1 softgel. Elemental magnesium is the comparison basis here and the panel states it directly, so 400 mg is read off the label rather than computed; the panel prints no weight for the oxide compound, so none is recorded and nothing is derived from one. This panel prints no "Servings Per Container" line. The serving it does print is 1 softgel and the front face prints "60 SOFTGELS", so the container holds 60 servings: the label's own count against the label's own serving.

Delivery

Delivery cost
$8.00
Below the $25.00 free-delivery threshold; $10.71 more would make delivery free.
Cost per dose delivered
$0.186
To get free delivery
Spend $10.71 more at Nature Made (direct)
Delivery policy: Nature Made, Nature Made shipping policy, 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
$14.29
Delivery
$8.00
Order total, before tax
$22.29
Per 200mg elemental magnesium, delivery included
$0.186

60 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 Nature Made (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: Nature Made, Nature Made shipping policy, re-read October 17, 2026 · checked Oct 17, 2026
Delivery terms and limits

Free shipping within the contiguous United States on orders of $25 or more before tax, and a flat $8 fee below that, from Nature Made’s own shipping policy page read September 23, 2026 and again on October 17, 2026: "Free shipping within the contiguous U.S. is available on: Orders $25+ (before tax)" and "A flat $8 shipping fee applies to: Orders under $25". Shipments outside the contiguous United States, including Alaska and Hawaii, carry the same $8 fee. The page calls neither term temporary. It also says some products or state requirements may add cost, shown at checkout, so a delivered total can be higher than these two figures describe.

Where to buy

Nature Made (direct) · lowest recorded available price
we earn nothing on this link
checked today
$14.29Buy

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: $14.29 at Nature Made (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 D: Could not locate independent data

We could not locate independent testing or certification for this product. That is a statement about our search, not about the product. These programs certify what a company submits to them, so a product can be absent simply because it was never entered, which is not a finding against it. Which certifier databases we searched, and when, is listed below. Where a program is not listed there, we have not checked it and do not imply anything either way.

  • Searched 4 certifier databases and found no listing for this product, and located no published test results. Programs we did not search are named below as not checked.
  • 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 it holds one row under Nature Made, listing 1809934 "Micronized Powder Creatine Monohydrate", and no magnesium row under this brand at all. 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: 159 products, 16 brands, captured in this site's directory snapshot. Nature Made is in that directory with 98 rows, and none of them names this product: its one magnesium softgel row, "Nature Made Magnesium Citrate 250 Mg Softgels", names a citrate product at another strength, and no row names a 400 mg magnesium product. This package's own label prints no USP Verified Mark. 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
Nature Made does not appear as a brand in LGC's own Informed Sport product list of October 2026, 497 brands and 1,887 product lines, as read on Oct 3, 2026. Absence from a list is not a failed test: Informed Sport certifies the products a company submits, so this records only that none from this brand is 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
Nature Made is on LGC's own Informed Choice product list of October 2026 with 12 product lines, as read on Oct 3, 2026, and none of them names this product. The only line under this brand that mentions magnesium at all is a combination product with calcium and zinc, and it is one of the lines LGC's PDF prints with a glyph the text layer could not decode, so it is not quoted here. Absence from a list is not a failed test: Informed Choice 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 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
softgel
Serving size
1 softgel
Active ingredient
Magnesium Oxide: 400mg as labeled
The panel prints "Magnesium (as Magnesium Oxide) 400 mg 95%" per serving of 1 softgel. Elemental magnesium is the comparison basis here and the panel states it directly, so 400 mg is read off the label rather than computed; the panel prints no weight for the oxide compound, so none is recorded and nothing is derived from one. This panel prints no "Servings Per Container" line. The serving it does print is 1 softgel and the front face prints "60 SOFTGELS", so the container holds 60 servings: the label's own count against the label's own serving.
Vegan
No
Gluten free
Yes
Allergens
Unknown
Other ingredients
Vegetable Oil (Soybean Oil and/or Medium Chain Triglycerides Oil), Gelatin, Glycerin, Lecithin, Colors Added (Including Carmine)
Label facts rest on: Nature Made, Supplement Facts panel and label faces: Nature Made Magnesium Extra Strength 400 mg (60 softgels) · 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 oxide 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.