How much does magnesium cost per dose?
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
Across the 50 capsules of magnesium we track and can price, 200 mg elemental magnesium costs between $0.033 and $2.30, before delivery. The middle of the range is $0.379, and the most expensive costs 69× the cheapest.
Across the 24 powders of magnesium we track and can price, 200 mg elemental magnesium costs between $0.01 and $1.57, before delivery. The middle of the range is $0.116, and the most expensive costs 152× the cheapest.
Capsules (with softgels and tablets) and powders are priced as two ranges, never one.
Two things move the price and neither is the brand alone: which salt the panel names, because the salts carry very different amounts of magnesium by weight, and the package, since a powder sold by the kilogram and a bottle of capsules are not the same purchase. A product whose panel names a second salt is marked. The salts are not interchangeable, so the cheapest row is a price, not a recommendation. Every figure is per 200 mg elemental magnesium as each product's own Supplement Facts panel states it, before delivery; each product page says whether its retailer publishes a delivery rate.
Capsules, softgels and tablets
Powder
200 mg elemental magnesium is the unit this site prices magnesium against, so that packages of different strengths and forms can be compared at all; it is not a recommendation about what to take. The cheapest at each type, with the salts side by side: What is the cheapest magnesium per dose?
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.