Verified Supplement Data

Cheapest Magnesium Glycinate (2026): Cost per 200 mg, Ranked

The cheapest pure magnesium glycinate we price is Nutricost Magnesium Glycinate 210 mg: $0.20 per 200 mg of magnesium at list price. BulkSupplements Magnesium Glycinate Powder costs less ($0.13), but its label adds oxide, so it is a blend. Our pick, Revive MD Magnesium Glycinate, is $0.33 per 200 mg ($0.33 a day) and on the Informed Sport list. Nature Made costs the most per mg ($0.73 per 200 mg) and is the only one here on USP’s testing list.

By Erin Rose Updated October 29, 2026 Sources

Which to buy

Nutricost Magnesium Glycinate 210 mg · $0.20 per 200 mg →Lowest cost pure glycinate: 210 mg in 3 capsules. Not on a testing list. Revive MD Magnesium Glycinate · $0.33 a day →Our pick: 200 mg in 2 capsules, on the Informed Sport list.

Every price on this page is at brand list prices; prices on Amazon differ. List prices checked October 14, 2026.

Every magnesium glycinate we track, ranked by cost per 200 mg

Cost per 200 mg is the list price divided by all the magnesium in the bottle, times 200. The dose is the Supplement Facts line named Magnesium, not the weight of the compound. Cheapest first; products with no list price come last, unranked.

Magnesium glycinate by cost per 200 mg of magnesium at the brand’s list price, checked October 14, 2026.
ProductPer 200 mgA year at 300 mg a dayBuy
1 BulkSupplements Magnesium Glycinate Powder300 mg of magnesium in ¾ teaspoon, list $21.97NSF/ANSI 173 · a glycinate + oxide blend $0.13 $70 Check price
2 Nutricost Magnesium Glycinate 210 mg210 mg of magnesium in 3 capsules, list $24.97No testing list found $0.20 $109 Check price
3 Doctor's Best High Absorption Magnesium200 mg of magnesium in 2 tablets, list $23.99No testing list found $0.20 $109 Check price
4 NOW Magnesium Bisglycinate Powder300 mg of magnesium in 1 level teaspoon, list $23.99No testing list found $0.21 $115 Check price
5 Revive MD Pure Magnesium Glycinate 200 mgOur pick200 mg of magnesium in 2 capsules, list $19.99Informed Sport $0.33 $182 Check price
6 NOW Magnesium Glycinate 200 mg200 mg of magnesium in 2 tablets, list $31.99No testing list found $0.36 $195 Check price
7 Thorne Magnesium Glycinate120 mg of magnesium in 1 capsule, list $26.00NSF/ANSI 173 $0.48 $264 Check price
8 Nature Made Magnesium Glycinate 200mg200 mg of magnesium in 2 capsules, list $21.99USP Verified $0.73 $401 Check price
– Nature's Bounty High Absorption Magnesium Glycinate 240 mg240 mg of magnesium in 2 capsules.No list price we could check –– Check price
– KAL Magnesium Glycinate 350 mg240 capsules, about 88 mg each. One serving (4 capsules, 350 mg) is the whole limit. Not on a testing list.No list price we could check –– Check price

For pure glycinate, the spread at list price is $0.20 to $0.73 per 200 mg: Nature Made Magnesium Glycinate 200mg costs 3.7 times as much as Nutricost Magnesium Glycinate 210 mg. It is the only one here on USP’s testing list; the magnesium itself is the same. At 300 mg a day, a year costs about $109 at the low end and $401 at the high end.

The number that matters: magnesium, not the compound

The “Magnesium” line on the Supplement Facts panel is the magnesium itself (the elemental amount), not the weight of the whole compound (NIH). Magnesium glycinate is about 14% magnesium by weight, so a capsule sold as “magnesium glycinate 1,400 mg” holds about 200 mg of magnesium. Divide the price by the Magnesium line, never by the number on the front.

We read 149 glycinate labels: the median serving is 250 mg

From 827 labels sold as magnesium glycinate (NIH label database, August 27, 2026), 149 list glycinate or bisglycinate on the Supplement Facts panel. The median serving gives 250 mg of magnesium and the median capsule or tablet 111 mg. Only 32.9% give 400 mg or more in one serving, so the number of capsules in a dose decides the cost more than the bottle price. 56.4% also name another magnesium form on the panel.

Magnesium per serving on magnesium glycinate labels
0 mg 100 mg 200 mg 300 mg 400 mg Median per capsule or tablet 111 mg Median per serving 250 mg NIH supplement limit from supplements, a day 350 mg
The median glycinate label gives 250 mg of magnesium a serving and the median capsule or tablet 111 mg, against NIH's 350 mg limit for supplements. Source: 149 glycinate labels in the NIH label database, read August 27, 2026.
Magnesium per serving on magnesium glycinate labels
ItemValue (mg)
Median per capsule or tablet111 mg
Median per serving250 mg
NIH supplement limit350 mg
How we read the labels

827 labels sold as magnesium glycinate were pulled from the NIH Dietary Supplement Label Database on August 27, 2026; the 149 that list glycinate or bisglycinate on the Supplement Facts panel were read. We split the labels into two groups and print only figures that came out the same in both. Download the data (JSON) (CC BY 4.0). It cannot tell you whether a capsule holds what its label says; that is what a testing list checks.

What a higher price buys

Not better magnesium. No trial has compared glycinate brands. A higher price can buy a place on a public testing list (USP or NSF), which checks that the capsule holds what the label says. A lower price can hide a blend: if the brackets on the Magnesium line name oxide too, part of the dose is oxide. In the one trial that compared glycinate with oxide at the same dose (100 mg, in 12 people who had part of their small bowel removed), overall absorption was about the same (23.5% vs 22.8%), and glycinate was better tolerated by every patient (Schuette 1994). Our full buying guide is the best magnesium glycinate.

Frequently asked questions

What is the cheapest magnesium glycinate?

At each brand’s list price, the cheapest pure glycinate we price is Nutricost Magnesium Glycinate 210 mg, $0.20 per 200 mg of magnesium. BulkSupplements Magnesium Glycinate Powder costs less, $0.13, but its label names glycinate and oxide, so it is a blend. The cheapest capsule or tablet is Nutricost Magnesium Glycinate 210 mg, $0.20. Prices on Amazon differ.

Why does the bottle say 1,400 mg but the label says 200 mg?

The front can print the weight of the whole compound. Magnesium glycinate is about 14% magnesium by weight, so “magnesium glycinate 1,400 mg” and “magnesium 200 mg” can describe the same capsule. The Supplement Facts line named Magnesium is the real dose. Of the 149 glycinate labels we read, the median capsule or tablet holds 111 mg of magnesium.

Is cheap magnesium glycinate as good as expensive?

For the magnesium itself, yes, if the label names glycinate (or bisglycinate) and nothing else. No trial has compared glycinate brands. A higher price can buy a public testing list that checks the dose against the label: of the 8 we price, Nature Made (USP Verified) and Thorne (NSF/ANSI 173) are on one that checks the label. Revive MD is on Informed Sport, which tests every batch for drugs banned in sport. 56.4% of glycinate labels also name another magnesium form, so read the form in brackets.

Is magnesium glycinate powder cheaper than capsules?

Usually, at list prices. Powder means no capsules to pay for, but you measure each dose, it tastes bitter, and a level scoop is only roughly the label amount.

Sources

  1. Schuette SA, Lashner BA, Janghorbani M. Bioavailability of magnesium diglycinate vs magnesium oxide in patients with ileal resection. JPEN. 1994. PubMed 7815675
  2. NIH Office of Dietary Supplements. Magnesium fact sheet for health professionals (updated January 6, 2026).
  3. NIH Dietary Supplement Label Database. dsld.od.nih.gov (labels read August 27, 2026).
  4. Prices: each brand’s own list price, checked October 14, 2026. We quote no Amazon prices.

This page is for information. It is not medical advice.