Manufacturer | Nutritionn |
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Manufacturer reference | MAG300 |
Product Dimensions | 8.9 x 8.9 x 16.6 cm; 525 g |
ASIN | B0C9WB79FF |
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Magnesium Glycinate Supplement - 300 Capsules x 212.5 mg Elemental Magnesium, 425 mg Once Daily for Women and Men - Pure Chelated Bisglycinate for Good Health and Sleep - Made in Canada by Nutritionn
Purchase options and add-ons
Brand | Nutritionn |
Item form | Capsule |
Primary supplement type | Magnesium |
Unit count | 300.0 Count |
Flavour | Unflavored |
Product benefits | Energy Metabolism, Sleep Support, Heart and Muscle Function, Tissue Formation, Electrolyte Balance, Bones and Teeth See more |
Number of Items | 1 |
Diet type | Vegetarian, Gluten Free, Vegan |
Item weight | 525 Grams |
Material type free | GMO Free |
About this item
- Proven Health Benefits: Nutritionn Magnesium Glycinate is a premium mineral supplement that helps in the development and maintenance of bones and teeth, helps to maintain normal muscle function (including the heart muscle), helps in energy metabolism and tissue formation, is a factor in normal growth and development, helps to maintain the body's ability to metabolize nutrients, provides electrolytes, helps to maintain normal electrolyte balance, and maintains good general health. Join the thousands of Canadians who are also getting better sleep.
- Highest Dosage: Each (large) capsule contains 212.5 mg of elemental (usable) magnesium from non-buffered (100% pure) magnesium glycinate, and a once-daily adult serving of up to two capsules contains 425 mg (2 x 212.5 mg). It's pure magnesium in a vegetarian capsule with no additional ingredients. A large but manageable capsule (2.5 x 0.9 cm) is required to fit this amount of magnesium from magnesium glycinate. If the capsule is too large, you can open it and mix the contents with your food or drink.
- Maximum Absorption Glycinate: This magnesium glycinate, also known as bisglycinate, is chelated, which makes it more absorbable and increases how much gets used by your body, resulting in it being more effective with a lower chance of digestive discomfort than other forms of magnesium. As with any food or supplement, your body won't absorb the total labelled quantity, but this form and dosage ensure the highest possibility of meeting your daily needs.
- Made in Canada: Our supplement is made in Canada at a Health Canada site-licensed facility and stored at a Health Canada site-licensed warehouse. It's made strictly following cGMP (Current Good Manufacturing Practice) guidelines and is third-party tested to ensure safety, quality, and purity. The highest standards are exceeded at every step of the way to you. Health Canada product license number 80091342.
- 300 Capsules: Discover the great value in this 300-capsule BPA-free bottle, which typically provides a 5 to 10-month supply. It's non-GMO, halal, vegan, gluten-free, and contains none of the common allergens. Imagine getting all the health benefits of this essential mineral easily taken care of for most of the year. You deserve the best, and this supplement was made to help you live your healthiest life.
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Important information
Ingredients
Magnesium (magnesium glycinate). Non-Medicinal Ingredients: Hypromellose (capsule).
Directions
Men 19 years and older - 2 capsules daily. Women 19 years and older - 1-2 capsules daily. Adolescents 9-18 years - 1 capsule daily. If capsule is too large, open and mix contents with food or drink.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
Product Description

Nutritionn Magnesium Glycinate Supplement
Recommended Use:
- Helps in the development and maintenance of bones and teeth.
- Helps to maintain normal muscle function, including the heart muscle.
- Helps in energy metabolism and tissue formation.
- A factor in normal growth and development.
- For maintaining general health.
- Helps to maintain the body’s ability to metabolize nutrients.
- Provides electrolytes.
- Helps to maintain normal electrolyte balance.
- Maintains good health.
The Numbers: 212.5 mg Elemental Magnesium per Capsule - Up to 425 mg Once-Daily Serving - 300 Capsules - 5 to 10-Month Supply - 0 Added Ingredients - Product License 80091342
Personal Diets: Non-GMO - Halal - Vegan and Vegetarian - Gluten-Free - No Common Allergens
Quality: Made in Canada - Third-Party Tested - cGMP Certified - Made and Stored in Federally Registered Facility - Securely Sealed and Packaged - BPA-Free Bottle
FAQs
Can magnesium glycinate help with sleep? Magnesium glycinate is known for this benefit. It's popular for its ability to improve sleep quality without causing drowsiness. For this supplement specifically, many users have reported great results with their sleep.
When is the best time to take it? Magnesium glycinate can be taken at any time of day. It's often best taken with a meal for maximum absorption and effectiveness. Many people who are looking for sleep benefits choose to take it later in the day, but because it doesn't cause drowsiness, you can also take it earlier.
What is the optimal dosage? Adults can take 1-2 capsules daily. You can start with one capsule to see how you respond and decide if you want to increase it to two. Adolescents (9-18 years) should limit their dose to one capsule daily.
If I take two capsules daily, should I take them at once or split the dose? While a single daily dose is convenient, taking two single-capsule doses also works well. It's a matter of seeing what works best for you and your schedule. For optimal effectiveness, it's best to ensure you remember to take the supplement daily so it's consistently working for you.
Will I experience any digestive side effects? Magnesium glycinate is less likely to cause digestive disturbances than other forms, but it's still possible to experience this, especially with higher doses. Some people are naturally more sensitive to magnesium supplements and may experience mild digestive side effects, even with glycinate. Taking a lower dose with food and plenty of water can help combat this.

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Product information
Technical Details
Additional Information
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Product details
- Product Dimensions : 8.9 x 8.9 x 16.6 cm; 525 g
- Date First Available : Aug. 30 2023
- Manufacturer : Nutritionn
- ASIN : B0C9WB79FF
- Manufacturer reference : MAG300
- Country of origin : Canada
- 鶹 Rank: #320 in Health & Personal Care (See Top 100 in Health & Personal Care)
- Customer Reviews:
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Customer reviews
Customers say
Customers like the quality, sleep quality, and effectiveness of the mineral supplement. They mention it's the best magnesium product on the market and helps decrease muscle cramping. Customers also say it's gentle on the stomach and has good ingredients. However, some customers disagree on the pill size and swallowability.
AI Generated from the text of customer reviews
Customers are satisfied with the quality of the product. They mention it's the best magnesium product on the market and a good choice. Some say it works well and is much more effective. However, some customers have reported that the capsules are huge.
"Great product! And fairly priced." Read more
"Good product! The capsules are a little bit large. it’s OK with me. However, my wife finds a little hard to swallow." Read more
"Excellent product" Read more
"Great quality!..." Read more
Customers are satisfied with the sleep quality of the product. They mention they're falling asleep quickly and sleeping soundly. Some say they've reduced their medications for sleep.
"Helps with sleep. Take at night and have been sleeping better." Read more
"This product has helped me with my sleep deprivation issues...." Read more
"I think this is actually helping me sleep better." Read more
"...I've purchased with respect to sleep..I take 2 and deep immediate sleep within 30 minutes..still wake up a few times but can drift back to sleep..I..." Read more
Customers like the effectiveness of the mineral supplement. They mention it helps decrease muscle cramping, feels better, and less stressed in the morning. Some say it helps in recovery from strength training and has a calming effect.
"...first capsule 45 mins ago and I've never felt such fast, heavy relaxation from a supplement, let alone something like magnesium...." Read more
"...So far it is working and no upset stomach" Read more
"Lotion put on at night helped my twitching legs." Read more
"...I’ve noticed an improvement in sleep quality and reduced muscle cramps since taking these regularly...." Read more
Customers like that the product is gentle on the stomach. They mention it's easier to swallow and doesn't upset their stomach after taking it. They also say the magnesium glycinate form is gentle compared to other types.
"...The capsules are easy to swallow, and the magnesium glycinate form is gentle on the stomach compared to other types of magnesium supplements I’ve..." Read more
"Easier on the stomach then drug store cheaper ones" Read more
"...Does not include any other synthesized ingredients. It does NOT upset my stomach after taking them." Read more
"...Everytime I take these, it causes diarrhea and a weak stomach...." Read more
Customers like the pill count of the mineral supplement. They mention it's available in a high capsule count, offers sufficient milligrams to suit their needs, and the size of the bottle is great.
"I’m Pleased with this product. Sufficient milligrams to suit my needs and the price was right." Read more
"Good number of pills and amount of Magnesium for the price." Read more
"...I love that it was available in a high capsule count. I really get fed up of SUPPLIMENTS that only have 30,60,90 capsule's supply at a time...." Read more
"It truly is where value meets quality. Made in Canada, offers a bit more mg and cheaper per pill than most, also its PURE magnesium glycinate...." Read more
Customers are satisfied with the ingredients of the mineral supplement. They mention it doesn't include any other synthesized ingredients and is pure.
"...And reading the ingredients they're really clean. Just chelated magnesium and fiber...." Read more
"...Does not include any other synthesized ingredients. It does NOT upset my stomach after taking them." Read more
"It is a clean supplement that does not have any expedients. This is rate to find only hypromellose used only." Read more
"I like the fact that this is a Canadian company. Also, the product is pure and I can take the recommended dosage easily...." Read more
Customers have mixed opinions about the pill size. Some mention the size of the bottle is great, while others say the capsules are huge and difficult to take.
"Tablet size is not big" Read more
"...The large bottle size of 300 is also appreciated!..." Read more
"These work well and are a decent price, but the capsules are huge. I probably wouldn’t reorder these ones again for that reason...." Read more
"I just started with this brand, good size and value for this product." Read more
Customers have mixed opinions about the swallowability of the mineral supplement. Some mention the capsules are large but very easy to swallow, while others say it's extremely difficult.
"...The capsules are easy to swallow, and the magnesium glycinate form is gentle on the stomach compared to other types of magnesium supplements I’ve..." Read more
"...it’s OK with me. However, my wife finds a little hard to swallow." Read more
"...This type of magnesium is easily absorbed by your body to make it more effective than some other types of magnesium...." Read more
"...I probably wouldn’t reorder these ones again for that reason. Hard to swallow and I’m usually really good at taking pills" Read more
Reviews with images

Large pill count, large dose per pill, love it
Top reviews from Canada
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- Reviewed in Canada on June 25, 2025Verified PurchaseI don't usually write reviews but I just took the first capsule 45 mins ago and I've never felt such fast, heavy relaxation from a supplement, let alone something like magnesium. I'm sure there'll be a tolerance aspect to the glycine or something, but it's easy to tell out the gate this stuff is the real deal.
And reading the ingredients they're really clean. Just chelated magnesium and fiber. Whoever made this supplement is in the game themselves which I appreciate.
- Reviewed in Canada on July 5, 2025Verified PurchaseThis product has helped me with my sleep deprivation issues. I have it an hour before going to bed, combined with vitamin D3, and it has worked nicely so far.
- Reviewed in Canada on June 18, 2025Verified PurchaseThese work well and are a decent price, but the capsules are huge. I probably wouldn’t reorder these ones again for that reason. Hard to swallow and I’m usually really good at taking pills
- Reviewed in Canada on June 5, 2025Verified PurchaseI had trouble with the capsule being larger than before; but the seller explained fully why the difference and did everything possible to compensate me. I was thrilled with their accountability and reciprocity! I guess it pays to shop Canadian products!
- Reviewed in Canada on May 27, 2025Verified PurchaseI think this is actually helping me sleep better.
- Reviewed in Canada on June 9, 2025Verified Purchaseproduct is great and customer service is amazing will order again
- Reviewed in Canada on June 11, 2025Verified PurchaseGood number of pills and amount of Magnesium for the price.
- Reviewed in Canada on June 23, 2025Verified PurchaseGood product! The capsules are a little bit large. it’s OK with me. However, my wife finds a little hard to swallow.
Top reviews from other countries
- SteveReviewed in the United States on October 27, 2024
5.0 out of 5 stars High Quality & Pure
Verified PurchaseThis Mag Glycinate seems to be the real deal at an excellent & affordable price. I've been experimenting with this product now for a couple of months to assist with sleep at night and rounding out my daily RDA for magnesium. No upset stomach. I take 2 capsules about 45-60 minutes before bed and helps me fall asleep and stay asleep for approximately 6-7 hours. Good sleep. I have been researching and trying out many magnesium products for the past 7-9 years and this is now one of my top 3 mags. In addition, it may be my main "go to" magnesium product for my night time amount before bedtime because of its effectiveness as well as having absolutely NO FILLERS. That's hard to find these days! As of today, I can Strongly recommend this product and encourage you to definitely give it a try.
Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.