Is Nature Made magnesium USP Verified?
Our pick for each type, capsules and powder ranked separately: Glycinate, capsules: Nature Made High Absorption Magnesium Glycinate 200 mg (60 capsules); Glycinate, powder: Thorne Magnesium Bisglycinate (60 servings); Citrate, capsules: Nature Made High Absorption Magnesium Citrate 250 mg (120 softgels); Citrate, powder: BulkSupplements.com Magnesium Citrate Powder (1 kg) (before delivery); L-Threonate: Momentous Magnesium L-Threonate (90 capsules) (before delivery). Types with no certified product are listed below. Where to buy
Partly: 3 of the 5 we track, not all of them. USP's directory names a product and a strength, not a package, and USP says the mark on the label is how a buyer knows. So a package counts as USP Verified here only when both hold: the product is in USP's directory, which we read in full, and this package's own label prints the USP Verified Mark. Every row below was read against that directory, and the row it matches is quoted.
USP lists this brand's magnesium one product at a time, so the glycinate capsules and the citrate softgels can be in the directory while a tablet from the same brand is not. Each row says which, and a tablet's card says what its own label prints.
| Product | Package | USP Verified at this package? | Directory row |
|---|---|---|---|
| High Absorption Magnesium Glycinate 200 mg (60 capsules) buy | 60 capsules | Yes | Nature Made High Absorption Magnesium Glycinate 200mg Capsules |
| High Absorption Magnesium Citrate 250 mg (60 softgels) buy | 60 softgels | Yes | Nature Made Magnesium Citrate 250 Mg Softgels |
| High Absorption Magnesium Citrate 250 mg (120 softgels) buy | 120 softgels | Yes | Nature Made Magnesium Citrate 250 Mg Softgels |
| Magnesium 250 mg (100 tablets) buy | 100 tablets | No directory row | None found |
| Magnesium 250 mg (200 tablets) buy | 200 tablets | No directory row | None found |
What the directory says
USP's Verified Products directory carries 2 rows matching products in this table, each quoted above beside the package it was read against. USP publishes no page for a single product and no listing ID, so the row itself is the record, and each product page names the day the directory was read.
2 products here had no row in USP's directory on the day it was read. A directory row is one of the two things this site needs before it calls a package USP Verified, and the card below says what each label prints. Absence from a directory is not a failed test.
What each product page shows
Every Nature Made product we track, across all categories: Is Nature Made third party tested?
Where to buy: the pick for each type
The pick is the cheapest certified product, at the exact package sold where the certifier names packages, with no adverse finding on record, a price its retailer let us read recently, and no more than a year’s supply at the label’s serving; per delivered dose where the retailer publishes a delivery rate. Where none does, it is the cheapest such product before delivery, and it says how far the order is from free delivery. It is the same pick the category page shows.
How these lines are chosen
Among 19 products and 19 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 8 products and 8 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 9 products and 9 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
How these lines are chosen
Among 5 products and 5 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below. No product here publishes a delivery rate below its free-delivery threshold, so the pick is priced before delivery.
A pick has to be independently certified, at the exact package sold where the certifier names packages, and carry no recall or failed test. Nothing we track here is yet. Each of these misses at least one bar, and says which:
A pick has to be independently certified, at the exact package sold where the certifier names packages, and carry no recall or failed test. Nothing we track here is yet. Each of these misses at least one bar, and says which:
A pick has to be independently certified, at the exact package sold where the certifier names packages, and carry no recall or failed test. Nothing we track here is yet. Each of these misses at least one bar, and says which:
A pick has to be independently certified, at the exact package sold where the certifier names packages, and carry no recall or failed test. Nothing we track here is yet. Each of these misses at least one bar, and says which:
How these lines are chosen
Among 7 products and 7 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below. No product here publishes a delivery rate below its free-delivery threshold, so the pick is priced before delivery.
A pick has to be independently certified, at the exact package sold where the certifier names packages, and carry no recall or failed test. Nothing we track here is yet. Each of these misses at least one bar, and says which:
A pick has to be independently certified, at the exact package sold where the certifier names packages, and carry no recall or failed test. Nothing we track here is yet. Each of these misses at least one bar, and says which:
Full comparison of every product in this category: Magnesium. Every question we answer: the question index.
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.