Magnesium Citrate
Each format is ranked separately, with its own table and its own pick; none is priced against another.
Capsules, softgels and tablets
How these lines are chosen
Among 10 products and 10 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 “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
Why this pick
Not a score, no weightings to argue with. It is the cheapest per delivered dose among products clearing four factual bars (a certification we confirmed applies to this package, naming it where the certifier names packages; no recall, warning letter or failed test in the sources we checked; a price its retailer let us read within its cache limit; no more than a year's supply at the label's serving) and whose delivery cost we actually know. It is provisional: it is the best answer within the products, retailers and sources we have actually checked, and that universe is still narrow.
Powder
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 “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.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 that clears every other bar publishes a delivery rate below its free-delivery threshold, so the pick is priced before delivery.
Why this pick
Not a score, no weightings to argue with. It is the cheapest certified option, at this exact package where the certifier names packages, with no recall, warning letter or failed test in the sources we checked, a price its retailer let us read within its cache limit, and no more than a year's supply at the label's serving, priced before delivery: no certified product here publishes a delivery rate below its free-delivery threshold, so what you pay depends on your cart. It is provisional: it is the best answer within the products, retailers and sources we have actually checked, and that universe is still narrow.
Gummies and chewables
How these lines are chosen
Among 3 products and 3 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.
Why this pick
Not a score, no weightings to argue with. It is the cheapest per delivered dose among products clearing four factual bars (a certification we confirmed applies to this package, naming it where the certifier names packages; no recall, warning letter or failed test in the sources we checked; a price its retailer let us read within its cache limit; no more than a year's supply at the label's serving) and whose delivery cost we actually know. It is provisional: it is the best answer within the products, retailers and sources we have actually checked, and that universe is still narrow.
Widely sold and cheap per elemental milligram. Compared on elemental magnesium, not on the weight of the citrate compound.
Prices checked daily. Every figure links to its source. Where the data comes from
Of the 20 products here: 5 confirmed at the exact package by a certifier, 3 at another size only, 2 whose listing names another form only, 10 in no database we searched.
| Product | Delivery | |||||
|---|---|---|---|---|---|---|
BULK BulkSupplements.com Magnesium Citrate Capsules (360 count) capsule · 400mg per serving · 2.00 per dose | $0.133 $3.99/mo + delivery | A? · Listing names another form Independently certified package unconfirmed | $23.96 checked today | not free $35.04 short | 90 = 180 doses 5.9 months at 1/day | Buy BulkSupplements.com |
NUTR | $0.158 $4.75/mo + delivery | D · None located Could not locate independent data | $19.97 checked today | not free $39.03 short | 60 = 126 doses 4.1 months at 1/day | Buy Nutricost (direct) |
EN | $0.20 $6.00/mo + delivery | D · None located Could not locate independent data | $11.99 checked today | not free $67.01 short | 30 = 60 doses 60 days at 1/day | Buy EVLution Nutrition (direct) |
NUTR | $0.222 $6.65/mo + delivery | D · None located Could not locate independent data | $13.97 checked today | not free $45.03 short | 30 = 63 doses 63 days at 1/day | Buy Nutricost (direct) |
NM | $0.30 $8.99/mo | D · None located Could not locate independent data | $17.99 checked today | $8.00 | 30 = 60 doses 60 days at 1/day | Buy Nature Made (direct) |
NM Nature Made High Absorption Magnesium Citrate 250 mg (120 softgels) · our pick softgel · 250mg per serving · 1.60 per dose | $0.315 $9.44/mo | A · USP Verified Independently certified | $23.59 checked today | $8.00 | 60 = 75 doses 75 days at 1/day | Buy Nature Made (direct) |
NUTR | $0.348 $10.45/mo + delivery | D · None located Could not locate independent data | $10.97 checked today | not free $48.03 short | 15 = 32 doses 32 days at 1/day | Buy Nutricost (direct) |
NM Nature Made High Absorption Magnesium Citrate 250 mg (60 softgels) softgel · 250mg per serving · 1.60 per dose | $0.378 $11.35/mo | A · USP Verified Independently certified | $14.19 checked today | $8.00 | 30 = 38 doses 38 days at 1/day | Buy Nature Made (direct) |
DWS | $0.396 $11.88/mo + delivery | D · None located Could not locate independent data | $19.95 checked today | not free $10.05 short | 90 = 50 doses 50 days at 1/day | Buy Double Wood Supplements (direct) |
BULK BulkSupplements.com Magnesium Citrate Softgels (240 count) softgel · 40mg per serving · 5.00 per dose | $0.666 $19.98/mo + delivery | A? · Listing names another form Independently certified package unconfirmed | $31.97 checked today | not free $27.03 short | 240 = 48 doses 48 days at 1/day | Buy BulkSupplements.com |
| Product | Delivery | |||||
|---|---|---|---|---|---|---|
MI Micro Ingredients Magnesium Citrate Powder, Unflavored (2 lb) powder · 907 g · 500mg per serving · 0.40 per dose | $0.044 $1.31/mo + delivery | D · None located Could not locate independent data | $29.95 checked today | not free $29.05 short | 274 = 685 doses 23 months at 1/day | Buy Micro Ingredients (direct) |
BULK BulkSupplements.com Magnesium Citrate Powder (1 kg) · our pick powder · 1000 g · 400mg per serving · 0.25 per dose | $0.051 $1.52/mo + delivery | A · NSF Certified for Sport Independently certified | $28.97 checked today | not free $30.03 short | 286 = 572 doses 19 months at 1/day | Buy BulkSupplements.com |
NUTR Nutricost Magnesium Citrate Powder, Unflavored (500 g) powder · 500 g · 210mg per serving · 0.95 per dose | $0.056 $1.69/mo + delivery | D · None located Could not locate independent data | $18.97 checked today | not free $40.03 short | 320 = 336 doses 11 months at 1/day | Buy Nutricost (direct) |
BULK BulkSupplements.com Magnesium Citrate Powder (500 g) powder · 500 g · 400mg per serving · 0.25 per dose | $0.08 $2.41/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $22.97 checked today | not free $36.03 short | 143 = 286 doses 9.4 months at 1/day | Buy BulkSupplements.com |
BULK BulkSupplements.com Magnesium Citrate Powder (250 g) powder · 250 g · 400mg per serving · 0.25 per dose | $0.148 $4.43/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $20.97 checked today | not free $38.03 short | 71 = 142 doses 4.7 months at 1/day | Buy BulkSupplements.com |
BULK BulkSupplements.com Magnesium Citrate Powder (100 g) powder · 100 g · 400mg per serving · 0.25 per dose | $0.344 $10.33/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $19.97 checked today | not free $39.03 short | 29 = 58 doses 58 days at 1/day | Buy BulkSupplements.com |
THOR | $0.52 $15.60/mo | C · Claimed Claimed, not confirmed | $39.00 checked today | free | 60 = 75 doses 75 days at 1/day | Buy Thorne (direct) |
| Product | Delivery | |||||
|---|---|---|---|---|---|---|
MEGA MegaFood High Absorption Magnesium Citrate Gummies, Raspberry (60 gummies) gummy · 100mg per serving · 2.00 per dose | $0.666 $19.99/mo + delivery | D · None located Could not locate independent data | $19.99 checked today | not free $30.01 short | 60 = 30 doses 30 days at 1/day | Buy MegaFood (direct) |
NM Nature Made High Absorption Magnesium Citrate Gummies 200 mg (60 gummies) · our pick gummy · 200mg per serving · 2.00 per dose | $0.753 $22.59/mo | A · USP Verified Independently certified | $22.59 checked today | $8.00 | 30 30 days at 1/day | Buy Nature Made (direct) |
NM Nature Made Zero Sugar Magnesium Citrate Gummies 200 mg (40 gummies) gummy · 200mg per serving · 2.00 per dose | $0.95 $28.48/mo | A · USP Verified Independently certified | $18.99 checked today | $8.00 | 20 20 days at 1/day | Buy Nature Made (direct) |
Common questions
About these numbers
What “per dose” means here: 200mg elemental magnesium
The NIH fact sheet gives an adult RDA of 310-420 mg of magnesium, and 200 mg sits below that whole range. It is a round number chosen as a common denominator across salts that carry very different amounts of magnesium per gram. It is a unit of comparison, not a recommended intake.
Compared on elemental magnesium as printed on the Supplement Facts panel, not on the weight of the citrate compound.
Where the data comes from
- Where a servings-per-container figure was not read from the package's own panel, the product page says how it was worked out.
- Amazon and Walmart are not included, so “cheapest” means cheapest among the retailers we track.
- Prices go stale. Each one shows when it was last checked, and says so when it is older than the retailer allows us to cache it.
- iHerb prices cannot be refreshed automatically. iHerb has not given us access to its price data, so those prices are marked stale until they are re-read. Each retailer offer carries its own check date.
How we make money
No Buy button on this page earns us anything. The only links on the site that can are the Amazon links shown below the price comparison on some product pages, outside the comparison, and each says so beside it.
Commission will play no part in what we list, how it ranks, or which link we send you to. The Buy button points at the lowest price we have recorded even when that retailer pays us nothing.