DeliveredDose

What is the cheapest NSF certified magnesium?

Our pick for each type, capsules and powder ranked separately: Glycinate, capsules: Nature Made High Absorption Magnesium Glycinate 200 mg (60 capsules) (NSF Certified for Sport does not list this package; it qualifies because USP Verified lists it); Glycinate, powder: Thorne Magnesium Bisglycinate (60 servings); Citrate, capsules: Nature Made High Absorption Magnesium Citrate 250 mg (120 softgels) (NSF Certified for Sport does not list this package; it qualifies because USP Verified lists it); 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

Among capsules, the cheapest is Core Med Science Magnesium Bisglycinate (60 capsules), at $0.40 before delivery, at $17.99 a container. Among powders, the cheapest is BulkSupplements.com Magnesium Citrate Powder (1 kg), at $0.049 before delivery, at $27.97 a container. Capsules and powders are ranked separately.

7 of the 75 magnesium products we track have their exact package named in NSF's Certified for Sport database. That is a stricter test than “the brand is NSF certified”, and it is deliberately so: NSF lists package sizes against each certificate, and a size it does not name is not one it has stood behind. Each price is delivered where the retailer publishes a delivery rate and before delivery where it does not, and each row says which. This page counts NSF's Certified for Sport database only, because its listings name the package size, which lets us check the exact package on sale. Informed Sport and Informed Choice certify tested batches instead, a different way of answering the question rather than a lesser one.

Magnesium Glycinate, capsules: 2 products

ProductPer 200mgContainerDelivery
Core Med Science Magnesium Bisglycinate (60 capsules) buy$0.40
before delivery
$17.99not published
Momentous Magnesium Bisglycinate (60 capsules) buy$0.566
before delivery
$16.99not published

Magnesium Glycinate, powder: 3 products

ProductPer 200mgContainerDelivery
BulkSupplements.com Magnesium Glycinate Powder (1 kg) buy
Its panel names Magnesium Glycinate and Magnesium Oxide.
$0.05
before delivery
$33.97not published
Thorne Magnesium Bisglycinate (60 servings) buy$0.867
delivered
$52.00free
Thorne Magnesium Bisglycinate, Travel Packs (30 stick packs) buy$1.57
delivered
$47.00free

Magnesium Citrate, powder: 1 product

ProductPer 200mgContainerDelivery
BulkSupplements.com Magnesium Citrate Powder (1 kg) buy$0.049
before delivery
$27.97not published

Magnesium L-Threonate, capsules: 1 product

ProductPer 200mgContainerDelivery
Momentous Magnesium L-Threonate (90 capsules) buy$2.30
before delivery
$49.99not published

Listed, but at another package

NSF lists these products, and the listing names a package other than the one we price. Very likely the same formula; not a package NSF has put its name to.

Cheapest among the 7 certified magnesium packages we have checked, not the cheapest that exists. NSF certifies magnesium from more brands than we carry, and our catalog is extended brand by brand, so a certified product we have not added yet cannot appear here however cheap it is.

Every brand in this category, by program: Which magnesium brands are third-party tested? What is the cheapest magnesium per dose? Is Momentous magnesium NSF certified? Is BulkSupplements magnesium NSF certified? NSF Certified for Sport vs Informed Sport: what is the difference?

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.

Capsules, softgels and tablets
Our pick, delivery included
Nature Made High Absorption Magnesium Glycinate 200 mg (60 capsules)
$1.00per 200mg, delivered$29.99 a month
A · CertifiedA · USP VerifiedBuy at Nature Made (direct) · $21.99
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.

Powder
Our pick, delivery included
Thorne Magnesium Bisglycinate (60 servings)
$0.867per 200mg, delivered$26.00 a month
A · CertifiedA · NSF Certified for SportBuy at Thorne (direct) · $52.00
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.

Capsules, softgels and tablets
Our pick, delivery included
Nature Made High Absorption Magnesium Citrate 250 mg (120 softgels)
$0.421per 200mg, delivered$12.64 a month
A · CertifiedA · USP VerifiedBuy at Nature Made (direct) · $23.59
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.

Powder
Our pick, before delivery
BulkSupplements.com Magnesium Citrate Powder (1 kg)
$0.049per 200mg, before delivery$1.47 a month
Delivery is extra and not published; free from $59.00.
A · CertifiedA · NSF Certified for SportBuy at BulkSupplements.com · $27.97
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.

Capsules, softgels and tablets
No pick yet. These came closest

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:

Nature Made Magnesium 250 mg (200 tablets) $0.048 per 200mg, no independent verification we could locate. Free delivery starts at $25.00, so this order is $13.11 short.
Powder
No pick yet. These came closest

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:

BulkSupplements.com Magnesium Oxide Powder (250 g) $0.027 per 200mg, no independent verification we could locate; delivery cost is not published. Free delivery starts at $59.00, so this order is $39.03 short.
Capsules, softgels and tablets
No pick yet. These came closest

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:

Nutricost Magnesium Malate (180 capsules) $0.143 per 200mg, no independent verification we could locate; delivery cost is not published. Free delivery starts at $59.00, so this order is $41.03 short.
Powder
No pick yet. These came closest

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:

BulkSupplements.com Magnesium Malate Powder (500 g) $0.062 per 200mg (its panel names Magnesium Malate and Magnesium Oxide), no independent verification we could locate; delivery cost is not published. Free delivery starts at $59.00, so this order is $34.03 short.
Our pick, before delivery
Momentous Magnesium L-Threonate (90 capsules)
$2.30per 200mg, before delivery$68.95 a month
A · CertifiedA · NSF Certified for SportBuy at Momentous (direct) · $49.99
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.

Capsules, softgels and tablets
No pick yet. These came closest

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:

Micro Ingredients Magnesium Taurate (240 capsules) $0.406 per 200mg, no independent verification we could locate; delivery cost is not published. Free delivery starts at $59.00, so this order is $37.05 short.
Powder
No pick yet. These came closest

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:

BulkSupplements.com Magnesium Taurate Powder (500 g) $0.128 per 200mg, no independent verification we could locate; delivery cost is not published. Free delivery starts at $59.00, so this order is $27.03 short.
More questions like this

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.