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Magnesium Glycinate Supplement

$ 19.95

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

Magnesium is one of the most essential minerals in the body, yet an NIH analysis of NHANES data found that nearly half of American adults fall short of their Estimated Average Requirement through diet alone. Double Wood's Magnesium Glycinate delivers magnesium chelated to glycine, the amino acid that gives this form its name and its gentler digestive profile. This bisglycinate structure protects the mineral from competing ions in the gut, so more of it is absorbed compared to inorganic forms like magnesium oxide or sulfate, supporting muscle recovery and a genuinely relaxed nervous system as the body settles into an evening routine.*

For those building a deliberate wellness routine, Magnesium Glycinate is a natural anchor. It's the foundation of our Phosphatidylserine pairing, built for anyone who feels tired but still wired at the end of a demanding day. Phosphatidylserine supports a healthy stress response while Magnesium Glycinate helps the body and nervous system actually relax. Magnesium Glycinate also pairs well with L-Theanine for those who want a more general mental and physical wind-down.* NSF Contents Certified, independently tested and audited to NSF/ANSI 173. Every batch is third-party tested by an ISO/IEC 17025 accredited laboratory, and the Certificate of Analysis is published on this page, no request needed.

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

Benefits
  • Bioavailable by design. Magnesium glycinate chelates elemental magnesium to glycine, protecting it from competing minerals in the gut, and is gentler on digestion than oxide or citrate forms.*
  • An anchor for sleep. Magnesium Glycinate supports the body settling into rest as part of a bedtime routine.*
  • A calm, settled nervous system. Glycine plays its own role in supporting relaxation, making this form a foundational piece of a deliberate evening routine, not just a mineral checkbox.*
  • Built for recovery. Magnesium plays a role in normal muscle contraction and relaxation, supporting comfort and recovery during everyday activity and training.*
  • Your evening pairing. Magnesium Glycinate is the foundation we build our Phosphatidylserine pairing around for anyone who feels tired yet wired at the end of a demanding day.*

Directions & Dosage

Take 1 capsule (400mg) daily, with or without food. Some people prefer 2 capsules depending on individual needs; we do not recommend exceeding 4 capsules per day. Many people take it 30 to 60 minutes before bed as part of an evening wind-down routine. If you are new to magnesium or notice any digestive sensitivity, starting with one capsule and staying there is a reasonable approach.

The Science Behind Magnesium Bisglycinate (Magnesium Glycinate)

Form determines absorption. A randomized, double-blind study published in Magnesium Research (Walker AF et al., 2003) found that organic magnesium forms, including amino acid chelates, showed better bioavailability than magnesium oxide. The chelated structure protects magnesium from competing minerals in the gut, supporting more efficient uptake.*

Magnesium's role in muscle function. Magnesium is directly involved in muscle contraction and relaxation, helping regulate calcium flow at the cellular level.* This makes adequate magnesium status a practical consideration for anyone who trains regularly or spends an active day on their feet.

A widespread gap. Analysis of NHANES 2013 to 2016 data by the NIH Office of Dietary Supplements found that 48 percent of Americans consumed less magnesium from food and beverages than their Estimated Average Requirement, particularly relevant for those under chronic stress, those who exercise regularly, and older adults with altered absorption.

View Latest Test Results

Third-party tested for quality and purity

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

Test Claim or Limit Result
Potency
Magnesium (as Magnesium Glycinate) NLT 60 mg 61.9 mg
Magnesium Glycinate NLT 400 mg 439.0 mg
Physical Testing
Capsule Weight 586.34-648.06 mg 618 mg
Heavy Metals
Arsenic ≤16.2 ppm 0.094 ppm
Cadmium ≤6.6 ppm 0.029 ppm
Lead ≤0.8 ppm 0.007 ppm
Mercury ≤0.5 ppm 0.003 ppm
Microbial Testing
Total Plate Count ≤10,000 cfu/g <10 cfu/g
Total Yeast & Mold Count ≤1,000 cfu/g <10 cfu/g
Coliform ≤100 cfu/g <10 cfu/g
E. Coli Absent Absent
Salmonella spp. Absent Absent
Staphylococcus aureus Absent Absent

Lot: AILCIManufactured: 02/2026

Lab: Canyonside Labs - Twin Falls ID

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
NSF Certified NSF Certified

Benefits

  • Bioavailable by design. Magnesium glycinate chelates elemental magnesium to glycine, protecting it from competing minerals in the gut, and is gentler on digestion than oxide or citrate forms.*
  • An anchor for sleep. Magnesium Glycinate supports the body settling into rest as part of a bedtime routine.*
  • A calm, settled nervous system. Glycine plays its own role in supporting relaxation, making this form a foundational piece of a deliberate evening routine, not just a mineral checkbox.*
  • Built for recovery. Magnesium plays a role in normal muscle contraction and relaxation, supporting comfort and recovery during everyday activity and training.*
  • Your evening pairing. Magnesium Glycinate is the foundation we build our Phosphatidylserine pairing around for anyone who feels tired yet wired at the end of a demanding day.*
Benefits

Magnesium Bisglycinate (Magnesium Glycinate)

Magnesium bisglycinate is formed by chelating elemental magnesium to two molecules of glycine. This chelation improves gastrointestinal absorption relative to inorganic forms like magnesium oxide, while the glycine component contributes its own role in supporting muscle recovery and a relaxed nervous system.* Each capsule delivers 400mg of magnesium bisglycinate, providing 60mg of elemental magnesium. NSF Contents Certified, independently tested and audited to NSF/ANSI 173.

Magnesium Bisglycinate (Magnesium Glycinate)

What Customers Are Saying

Reviews

"Keeping customers informed about their delivery and being proactive in reaching out to customers. Excellent customer service. It's obvious you're in the business of caring for people. Thank you!"

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"Very pleased with the service, from placing my order to receiving it. Painless, simple, and quick."

Craig V.

"Doublewood has consistent quality shipping, great product introductions, and tracks previous orders, and provides incentives for frequent customers. Products are single ingredient supplements, for optimal dosage. Great source for unique supplements."

John T.

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Reviews
Supplement Facts

Pairs well with

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

Frequently Asked Questions

Why does the form of magnesium matter?

Not all magnesium behaves the same way in the body. Magnesium glycinate, also called magnesium bisglycinate, binds elemental magnesium to glycine, protecting it from competing minerals in the gut and improving absorption over inorganic forms like magnesium oxide.* A randomized, double-blind study in Magnesium Research (Walker AF et al., 2003) confirmed that organic magnesium forms outperform oxides in bioavailability. For those who've tried magnesium and felt digestive discomfort, glycinate is often the form that finally works.

Is Magnesium Glycinate good for muscle recovery?

Yes, magnesium plays a direct role in normal muscle contraction and relaxation, making it a practical daily addition for anyone who trains regularly or is simply active.* Magnesium glycinate's gentle absorption profile makes it well suited to consistent daily use.

When is the best time to take Magnesium Glycinate?

Magnesium Glycinate can be taken any time of day that fits your routine, with or without food. Many people prefer taking it after activity or in the evening as part of a broader wind-down, but consistency matters more than timing.

How much elemental magnesium am I getting?

Each capsule of Double Wood Magnesium Glycinate delivers 400mg of magnesium bisglycinate, providing 60mg of elemental magnesium. Our third-party Certificate of Analysis confirms the product meets or exceeds label claim, well within the NIH's Tolerable Upper Intake Level for supplemental magnesium.

What does third-party testing actually mean for this product?

This product is NSF Contents Certified, independently tested and audited to NSF/ANSI 173. Every batch is also tested by an ISO/IEC 17025 accredited laboratory, the recognized standard for analytical testing accuracy. Testing covers identity, potency, four heavy metals by ICP-MS, and six microbial screens including E. coli, Salmonella, and Staphylococcus aureus. Results are published on this page so you never have to request them.

What pairs well with Magnesium Glycinate?

Magnesium Glycinate is the foundation of our Phosphatidylserine pairing, built for anyone who feels tired but still activated at the end of a demanding day. Phosphatidylserine supports a healthy stress response while Magnesium Glycinate helps the body actually wind down, addressing both the mental and physical sides of tension.* It also pairs well with L-Theanine for a more general sense of calm.

Are there side effects to watch for?

Magnesium glycinate is among the best tolerated forms of magnesium, and most people experience no digestive discomfort at recommended serving sizes. Higher doses may cause loose stools in more sensitive individuals. Anyone managing kidney disease, taking prescription medications, or with cardiovascular concerns should consult their healthcare provider before use.

Overall rating: 4.801653 / 5 from 121 reviews.

AI Generated Review Summary

Magnesium Glycinate Supplement is highly recommended for its quality and affordability. Customers report significant improvements in sleep and anxiety control, with many praising the supplement's effectiveness. The product is also noted for its excellent quality, affordable price, and reliable shipping.

Summary topics

  • Double Wood Reputation (11%): In general, customers find Double Wood to be a great company with affordable prices and excellent quality.
  • Product Price (9%): Customers raved about the great price of the product, mentioning it multiple times in their reviews.
  • Supplement Quality (16%): Based on many customers, the supplement is highly recommended for its quality and affordable price. (100% agreement)
  • Sleep Improvement (25%): A significant number of customers pointed out that this supplement provides better sleep and better anxiety control.
  • Product Quality (9%): It was noted by customers that the quality of the product is excellent, with great shipping and good quality.

Review topics: ["feeling","quality","improvement","shipping","body","dose","value","price","sleep","supplement","wood","magnesium","order","difference","service","capsules","magnesium glycinate","effect","form","cramps"].

Review highlights

  • "As always Double Wood has the best quality supplements and are affordable" — VICKI
  • "Great quality product at a reasonable price!" — DIANE
  • "Rare company that gives such great service and products." — Lorraine M.

Reviews

"Works well, I sleep much better!!!"

— Jessica (5/5)

"I receive my order today. I’m very satisfied with my purchase. Think I made the right choice satisfied thumbs up."

— LEN (5/5)

Magnesium for leg cramps!

"I take 2 capsules daily, they work great for preventing leg cramps at night with… no side effects!"

— Elenore A. (4/5)

"I feel a difference in my sleep if I skip a night without taking my Mag-G. My body feels comfortable and relaxed by giving me time to ease into sleep."

— Fenix H. (5/5)

"Best magnesium glycinate on the market. Hard to find high dose but these guys have it."

— Marcia (5/5)

"Clean"

— Maria (5/5)

"Excellent service & quality!"

— Edwin (5/5)

"I been buting frim this company fir a long time abd i love their products They pure and tge price is affordable I sleep better and ferl better"

— Maica (5/5)

I need at least 400

"I need at least 400 mg /day per day for proper rest and soft stools. I ran out of your magnesium glycinate and got a different kind of mag. glycinate. I was getting constipated and couldn’t sleep. I saw that that though they advertised 400 mg magnesium glycinate, it was only 60 mg of magnesium. I immediately ordered yours and am happy again!"

— Doris B. (5/5)

"Fast deluvery. Premier product"

— Maggie (5/5)

Q&A

What other ingredients does it have besides the Magnesium Glycinate
Thank you for reaching out with your question! For faster assistance with product-related inquiries, we recommend contacting our customer service team directly at hello@doublewoodsupplements.com. Our team will be happy to provide the information or support you need.
Does this have any side effects? Diarrhea for instance?
Yes, magnesium supplements can cause diarrhea, particularly if taken in high doses or if using forms like magnesium citrate, oxide, or sulfate. Other potential side effects of magnesium include: Stomach cramps or discomfort Nausea or upset stomach Bloating or gas The laxative effect is more common with certain types of magnesium, such as magnesium citrate and magnesium oxide, which are often used to treat constipation. Magnesium Glycinate and Magnesium L Threonate are typically considered the most tolerated versions of Magnesium for most people
How many mg of glycine per capsule?
Our Glycine is 500 mg per capsule as indicated on the bottle.

Magnesium Glycinate Supplement

From

$ 19.95

Primary Benefit

Sleep

Other Benefits

Anxiety & Stress

Product Form

Capsule
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