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Magnesium Citrate Supplement

$ 19.95

Magnesium Citrate supports overall wellness with a highly absorbable form of magnesium. Enjoy improved relaxation and daily vitality.
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Description

Not all magnesium supplements state their numbers the same way. Magnesium Citrate is magnesium bound to citric acid, a water-soluble form that can be taken with or without food. Each two-capsule serving delivers 800mg of magnesium citrate, yielding 112mg of elemental magnesium, approximately 28% of the Daily Value. We state both figures plainly on the label to help you compare magnesium supplements across brands.

Double Wood's formula is single-form magnesium citrate, not a citrate/oxide blend. It supports everyday digestive wellness, muscle function, and nerve function as part of a foundational daily routine.* Every batch tested. Third-party tests by ISO/IEC 17025 accredited labs. COAs published openly.

Magnesium Citrate pairs well with Digestive Enzymes for a mealtime and daily routine approach.* Digestive Enzymes support the breakdown of proteins, fats, and carbohydrates at mealtime, while Magnesium Citrate provides magnesium for normal muscle and nerve function and everyday digestive wellness.*

Soy-Free, Gluten-Free, Non-GMO, Vegan

Benefits
  • 800mg magnesium citrate per serving, yielding 112mg of elemental magnesium, the amount of magnesium provided by the compound
  • Single-form magnesium citrate, not a citrate/oxide blend
  • Supports everyday digestive wellness, muscle function, and nerve function as part of a foundational daily routine*
  • Every batch tested. Third-party tests by ISO/IEC 17025 accredited labs. COAs published openly
  • Soy-Free, Gluten-Free, Non-GMO, Vegan. Manufactured in a cGMP-certified U.S. facility

Best For

This is for you if:

  • You experience occasional constipation or irregular digestion
  • You want a single-ingredient, highly absorbable magnesium
  • You prefer capsules to powders or liquids

Consider a different form if:

  • You're looking for sleep support → Magnesium Glycinate
  • You're looking for cognitive support → Magnesium L-Threonate
  • You have kidney disease — talk to your provider first

Directions & Dosage

Take 2 capsules (800mg) daily with or without food. Do not exceed 4 capsules per day. Those managing kidney conditions or taking prescription medications should consult their healthcare provider before use.

The Science Behind Magnesium Citrate (magnesium bound to citric acid)

Bioavailability and what the research shows. Among supplemental magnesium forms, citrate has been studied for its bioavailability relative to less soluble options. A randomized, double-blind comparison study published in Magnesium Research (Walker AF et al., 2003) found that organic magnesium forms, including magnesium citrate, demonstrated better bioavailability than magnesium oxide, the most commonly used inorganic form.*

Magnesium's broader role in the body. Magnesium participates in over 300 enzymatic reactions in the human body, including energy metabolism, protein synthesis, muscle contraction, and nerve signal transmission. The NIH Office of Dietary Supplements estimates that a significant portion of American adults consume less than the recommended amount of magnesium through diet alone. At 112mg of elemental magnesium per serving, Double Wood's Magnesium Citrate falls well within the NIH Tolerable Upper Intake Level of 350mg supplemental elemental magnesium per day for adults.

Why form still matters here. Magnesium citrate is not the right form for every goal. Double Wood offers multiple magnesium forms because different forms serve different primary purposes. Magnesium citrate's clearest distinction is its water-solubility and its role in everyday digestive wellness alongside foundational muscle and nerve support.*

View Latest Test Results

Third-party tested for quality and purity

This production lot was tested for magnesium citrate and elemental magnesium content, capsule quality, heavy metals, and microbial quality

Test Claim or Limit Result
Potency
Magnesium (from Magnesium Citrate) 100.8-140 mg 110 mg
Magnesium Citrate 720-1,000 mg 785.7 mg
Physical Testing
Capsule Weight 657-691 mg 674 mg
Disintegration Time NMT 30 minutes Passed
Heavy Metals
Arsenic (As) ICP <10 µg/serving 0.012 µg/serving
Cadmium (Cd) ICP <4.1 µg/serving 0.001 µg/serving
Lead (Pb) ICP <0.5 µg/serving 0.362 µg/serving
Mercury (Hg) ICP <0.3 µg/serving <0.000 µg/serving
Microbial Testing
Total Plate Count <10,000 CFU/g Pass
Total Yeast & Mold Count <1,000 CFU/g Pass
E. Coli Absent Pass
Salmonella spp. Absent Pass
Staphylococcus aureus Absent Pass

Lot: 2523401Manufactured: 12/2025

Lab: Brand Nutraceuticals, Inc.

View Certificate of Analysis (PDF)

See the original Certificate of Analysis for complete testing details, methods, and laboratory documentation.
View Certificate of Analysis View Third Party Test Results
Identity, potency, and contaminants verified per batch Identity, potency, and contaminants verified per batch
Manufactured in an FDA-registered cGMP facility Manufactured in an FDA-registered cGMP facility
Manufactured in the USA from Globally Sourced Materials Manufactured in the USA from Globally Sourced Materials

Benefits

  • Supports Nerve and Heart Health: Studies have shown Magnesium Citrate may support healthy cell, nerve, muscle, and heart function.
  • Supports Healthy Sleep Quality: Magnesium Citrate helps promote healthy sleep quality.
Benefits

Magnesium Citrate (magnesium bound to citric acid)

Magnesium Citrate is elemental magnesium bound to citric acid, a naturally occurring organic acid. The citrate bond creates a water-soluble compound that can be taken with or without food. By weight, magnesium citrate is approximately 14% elemental magnesium, meaning 800mg of the compound delivers 112mg of the actual mineral. Double Wood's formula provides 800mg of magnesium citrate per two-capsule serving, single-form, not blended with magnesium oxide, verified by USP titration for both total citrate content and elemental magnesium yield. Every batch tested for purity, potency, heavy metals, and microbial safety. Third-party tests by ISO/IEC 17025 accredited labs. COAs published openly.

Magnesium Citrate (magnesium bound to citric acid)

What Customers Are Saying

Reviews

"Reputation of product and overall delivery and ordering experience has always been a good experience."

Jacqueline P.

"Always fast shipping and great selection no matter what you’re looking for."

Aaron B.

"Double Wood is always my go-to for supplements. Great, effective, clean products and always at a reasonable price."

Jan W.

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Pairs well with

Powerful alone, stronger together. Magnesium Citrate Supplement delivers targeted support on its own, but combining it with complementary ingredients can help create a more holistic and balanced approach to wellness.

  • Zinc Picolinate Supplement

    Zinc Picolinate offers an easily absorbed source of zinc to support your daily nutritional needs for overall wellness.

  • Magnesium Glycinate Supplement

    Magnesium Glycinate promotes relaxation and supports overall wellness, making it a great addition to your daily routine.

Frequently Asked Questions

Why does the form of magnesium matter, and what makes citrate different?

Different magnesium forms have meaningfully different absorption profiles. Magnesium citrate is bound to citric acid, making it a water-soluble form that can be taken with or without food. Double Wood's formula is single-form magnesium citrate, not a citrate/oxide blend.*

How much elemental magnesium is in each serving, and what does elemental magnesium mean?

Elemental magnesium is the amount of magnesium provided by the compound, not the total compound weight. Magnesium citrate is magnesium bonded to citric acid, and by weight it is approximately 14% elemental magnesium. That is why 800mg of magnesium citrate delivers 112mg of elemental magnesium per serving. Every batch is verified by USP titration confirming both figures, with the full Certificate of Analysis publicly available on this page.

Is this pure magnesium citrate, or blended with magnesium oxide?

Double Wood's Magnesium Citrate is single-form magnesium citrate, not a citrate/oxide blend. It is manufactured and third-party tested in the USA for identity, potency, heavy metals, and microbial safety.

What supplements pair well with Magnesium Citrate?

Magnesium Citrate pairs well with Digestive Enzymes for a mealtime and daily routine approach.* Digestive Enzymes support the breakdown of proteins, fats, and carbohydrates at mealtime, while Magnesium Citrate provides magnesium for normal muscle and nerve function and everyday digestive wellness.*

Is Double Wood's Magnesium Citrate third-party tested, and what does the COA confirm?

Every batch tested for purity, potency, heavy metals, and microbial safety. Third-party tests by ISO/IEC 17025 accredited labs. Testing covers identity and potency by USP titration, four heavy metals by ICP-MS (arsenic, cadmium, lead, and mercury, all verified below USP limits), and six microbial screens including E. coli, Salmonella, and Staphylococcus aureus. The COA confirms 800mg magnesium citrate and 112mg elemental magnesium per serving. COAs published openly, no request needed.

Is it safe to take Magnesium Citrate every day?

Magnesium citrate is widely used as part of a consistent daily wellness routine. The NIH Office of Dietary Supplements sets the Tolerable Upper Intake Level for supplemental magnesium at 350mg elemental per day for adults, separate from magnesium naturally obtained from food. At 112mg of elemental magnesium per serving, Double Wood's formula falls comfortably within that range at the standard two-capsule daily serving. Those managing kidney conditions or taking prescription medications should speak with their healthcare provider before starting any magnesium supplement.

What does the Magnesium Citrate Certificate of Analysis confirm?

The COA confirms 800 mg of magnesium citrate per capsule, delivering 112 mg of elemental magnesium per capsule (about 27% Daily Value) — the citrate form providing approximately 14% elemental magnesium by weight. Identity and potency are verified by USP titration against magnesium reference standards. Heavy metals: arsenic, cadmium, lead, and mercury all verified below USP <2232> daily-intake limits via ICP-MS. Microbial screens (TPC, Yeast & Mold, Coliform, E. coli, Salmonella, Staph aureus) within USP and AOAC specifications. The current batch COA is linked above for verification against the lot number on your bottle.

Overall rating: 4.928571 / 5 from 14 reviews.

AI Generated Review Summary

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Review highlights

Reviews

"Excelente servicio"

— Melecio (5/5)

Love Magnesium Citrate and Magnesium Glycinate

"The citrate is so perfect for my system. My previous citrate was too strong and upset my stomach a lot. I have now figured out the doses and times to take this and am very pleased with the results. The Glycinate is so gentle and relaxing. It stops the occasional leg cramp. My mind races at night and it really settles me down. I take 1 with my Sleep supplement and get a good night's sleep. I like it a lot. I have the Citrate on automatic ship and will order the Glycinate as needed"

— Marcia S. (5/5)

Great product

"Great product!"

— Debbie B. (5/5)

magnesium citrate

"I am very h with this product."

— maureena r. (5/5)

Thumbs

"Good recommended"

— Jon G. (5/5)

"Another excellent supplement from Double Wood."

— Penelope P. (5/5)

Magnesium Citrate

"Magnesium citrate for relaxation and bowel management. Quality product for a good price."

— Barbara M. (5/5)

We always trust each and

"We always trust each and every product of yours, including the magnesium citrate. We know it is thoroughly tested, so it is safe. We have no difficulty swallowing the capsules, and we have had no after effects. Thank you for each support supplement we purchase from you."

— Julie F. (5/5)

I like that it has

"I like that it has basic ingredient, no excess fillers"

— Margaret B. (5/5)

I like them!

"I like them!"

— maureena r. (5/5)

Q&A

Where is your magnesium sourced from? Specifically the citrate and glycinate? And what about the bee pollen?
The raw material for these products is sourced in China. The material is then refined, encapsulated (where applicable) and tested in the US.

Magnesium Citrate Supplement

From

$ 19.95

Primary Benefit

Heart & Vessels

Other Benefits

Gut Health, Sleep

Product Form

Capsule
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