Written by:

Angela Schulz

• Expert tested

• Evidenzbasiert

Magnesium is an important mineral for maintaining regular bodily functions. However, many people find it tough to get enough through diet alone, and they need to turn to magnesium supplements to meet their dietary requirements. With hundreds of supplements out there, fishing through a sea of products can feel like a real struggle. What is magnesium? Why is it important? What are the best supplements out there today?

Keep reading to learn all about magnesium and discover the best magnesium supplements in 2025.*

Published:

Try To Avoid

• Unclear Labels: A quality magnesium supplement should clearly list exactly what’s included in the formula. Avoid products lacking transparency that don’t list all of the specific ingredients included in the formula.
• Missing Safety Testing & Certifications: Choose a magnesium supplement that has been independently third-party lab tested and manufactured with globally sourced ingredients. These precautions will guarantee that the product is top quality and free from unwanted extras, such as contaminants, traces of heavy metals, or pesticides.
• False or Misleading Claims: Beware of any supplements that claim their product treats or cures any specific disease or ailment, or promises miraculous, unrealistic, or misleading results. Always speak to your doctor before starting a new supplement routine.
• Suspiciously Cheap Products: When it comes to your health, this is definitely not an area to test out suspiciously cheap products. There are plentiful options to choose from that are high value and still affordable. In this case, you do get what you pay for!

Top Magnesium Supplements 2025

Magnesium Bis-Glycinate by Canprev

Magnesium Citrate Powder by Natural Calm

Magnesium  by Nature's Bounty

Magnesium Bisglycinate by Thorne

Key Ingredients To Look For

Important Criteria

*We try to update product information as often as we can. Please visit product websites for more information.

Ingredients To Avoid

Bottom Line:

Primal Magnesium by Primal Harvest features a blend of three forms of magnesium in an easy-to-swallow, plant-based capsule. Expertly formulated, it contains magnesium glycinate, magnesium citrate, and magnesium malate as well as zinc to target many wellness needs.* This formula combines different types of magnesium with 8 mg of zinc and provides 74% the DRV of magnesium and 73% the DRV of zinc. The formula comes in a plant-based, hypromellose capsule, and at two capsules a day, was a convenient and easy-to-take serving size.

As all high-quality supplements should be, Primal Magnesium is third-party lab tested and made with globally sourced ingredients. This product offers great value for money, with big discounts being offered  if you purchase multiple bottles at once. 

The 90-day returns policy ensures that you have plenty of time to make sure that this product is the perfect fit for your needs.

PROS

CONS

Rating A+

Our rating:

• 3-in-1 formula with 3 magnesium types
• With 310 mg of magnesium - 74% the DRV
• Contains 8 mg zinc - 73% the DRV
• Easy-to-swallow, plant-based capsules
• Certified safety & purity testing
• Made with globally sourced ingredients

• Only available online
• Sometimes runs out of stock

How we rated the Top 5 Nutritional Supplements

Each of our reviews is based on a factual analysis and comparison. We examine the ingredients, dosages and manufacturing processes to understand the quality of the product. In addition, we evaluate customer reviews, value for money and customer service to protect our readers from negative buying experiences. Although we may receive compensation for these reviews, we strive to provide objective comparisons based on facts.

EFFECTIVENESS 

INGREDIENTS

PRICE-PERFORMANCE 

CUSTOMER SERVICE 

Top Supplements 2025

90-Day Money-Back Guarantee

Third Party Tested

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Bottom Line:

Canprev's Magnesium Bis-Glycinate combines two forms of magnesium (oxide and bis-glycinate) in a convenient 1-capsule serving. While we appreciate the clean formulation, the formula omits zinc and only delivers 33% of the DRV, which some may find insufficient for optimal benefits.

PROS

CONS

2. Magnesium Bis-Glycinate

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by Canprev

Rating: B+

Our rating:

• Contains magnesium glycinate
• 1 capsule serving size
• GMO-free

• Only 33% of DRV
• No zinc

Bottom Line:

Natural Calm's Magnesium Citrate Powder becomes magnesium citrate when mixed with water. It contains natural flavors, using organic flavors and stevia to sweeten. While the powder format provides flexible dosing, dosage information requires consulting a separate chart, which some may find complex. Worth noting: known common downsides for users include possible digestive discomfort.

PROS

CONS

3. Magnesium Citrate Powder

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by Natural Calm 

Rating B

Our rating:

• Powder format may be preferable for some
• Uses natural flavors

• Only 1 form of magnesium
• Dosages not listed clearly on label, requires consulting a separate dosage chart

Bottom Line:

Nature’s Bounty Magnesium features 500 mg of magnesium oxide in a 1 tablet per day serving. You may note that they offer a decent product at an affordable price. However, it only contains one type of magnesium and lacks zinc. This brand has a 60-day return policy and this product can only be purchased through third-party retailers.

PROS

CONS

4. Magnesium

by Nature's Bounty

Rating C+

Our rating:

• 500mg magnesium
• Price
• 1 tablet serving size

• 1 type of magnesium
• no zinc

Our Choice 2025

Based on 3739 Reviews of Primal Harvest 

by Primal Harvest[1]

• Easy-to-swallow capsules
• Standard price point
• Certified safety & purity testing
• 90-day money-back guarantee
• Made with globally sourced ingredients

Bottom Line:

Magnesium Bisglycinate by Thorne is formulated with two forms of magnesium glycinate that comes in powder form. Users are recommended to mix 1 scoop with 8 oz. of water one to two times daily. Whether a powder form is less or more really up to each individual, some people may prefer the convenience of a capsule as it’s easier to bring the supplement along on trips or take on-the-go. You may notice that the product only contains 1 type of magnesium and delivers 200 mg in each serving, this is slightly lower than some of the other magnesium supplements included in our list. 

PROS

CONS

5. Magnesium Bisglycinate

by Thorne

Rating C

Our rating:

• Contains magnesium glycinate 
• Sweetened with monk fruit
• Certified testing and made in the USA

• Powder form may be less convenient 
• Only contains one form of magnesium
• 200 mg magnesium

Citations

DISCLAIMER: This scientific research is for informational purposes only. The results reported may not necessarily occur in all individuals. Wellness Reviews provides this information as a service but does not endorse it. This information should not be read to recommend or endorse any specific products.

[1] Schwalfenberg, Gerry K, and Stephen J Genuis. “The Importance of Magnesium in Clinical Healthcare.” Scientifica, U.S. National Library of Medicine, 2017, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5637834/. 

[2] “Office of Dietary Supplements - Magnesium.” NIH Office of Dietary Supplements, U.S. Department of Health and Human Services, https://ods.od.nih.gov/factsheets/Magnesium-healthProfessional/. 

[3] L;, Boyle NB;Lawton CL;Dye. “The Effects of Magnesium Supplementation….” Magnesium Research, U.S. National Library of Medicine, https://pubmed.ncbi.nlm.nih.gov/27869100/. 

[4] J;, Workinger JL;Doyle RP;Bortz. “Challenges in the Diagnosis of Magnesium Status.” Nutrients, U.S. National Library of Medicine, https://pubmed.ncbi.nlm.nih.gov/30200431/#:~:text=It%20is%20currently%20estimated%20that,disorders%2C%20to%20name%20a%20few. 

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To see a list of our other references, please click here. 

Why is magnesium important?

Muscle and nerve function - muscle movements and nervous system regulation (messages between the brain and nervous system)*

Maintaining healthy blood  sugar levels already within normal range

Maintaining healthy blood pressure already in normal range

Magnesium is needed by the body for hundreds of bodily functions including:

• Loss of appetite
• Nausea

When it comes to finding the right supplements, it can get pretty complex. There are endless products to choose from formulated with different forms of magnesium that may target different needs.

Some types of magnesium found in supplements are bound with other compounds. Here are some of the most common forms of magnesium to look for: 

How may other magnesium supplements on the market not meet your needs?

What is magnesium?

Magnesium is an essential mineral found in every single cell in the body. In fact, it is the fourth most abundant mineral in the body. It plays an important role in over 300 enzyme reactions in the body making it crucial for maintaining our health. [1]

This vital mineral is mostly found in the bones - with about 50-60% of magnesium being present in the bones. 

This is one of the reasons why maintaining magnesium levels in the body is important for bone health - and so much more. [2]

Protein and bone formation*

Potential Signs of low magnesium include…

Magnesium may help promote muscle recovery after exercise and support sleep quality, relaxation, and energy levels.*

Studies also suggest that because magnesium is so important for brain health, it may be beneficial for promoting good mood. [3] 

Despite all its benefits, it is estimated that approximately 60% of US adults get less than the average dietary intake of magnesium. [4]

Converting food into energy*

Supporting DNA*

Note: These statements are not intended to diagnose, treat, cure, or prevent any disease or condition, nor are they intended to be substitutes for professional medical health advice. Always consult your physician or other qualified healthcare provider for accurate advice, diagnosis, and treatment plan.

• Vomiting
• Fatigue

• Weakness

• People with digestive conditions
• People with blood sugar conditions

Some groups of people are more likely than others to get too little magnesium. These include:

Note: These statements are not intended to diagnose, treat, cure, or prevent any disease or condition, nor are they intended to be substitutes for professional medical health advice. Always consult your physician or other qualified healthcare provider for accurate advice, diagnosis, and treatment plan.

• People with medical conditions that impact absorption 
• Older people*

• Magnesium citrate
• Magnesium glycinate
• Magnesium lactate

You may also come across magnesium supplements for sleep that combine magnesium with other minerals like calcium and zinc. Calcium is combined with magnesium to support bone health. Zinc, on the other hand, may be particularly useful for sleep.* 

• Magnesium chloride
• Magnesium malate

Choosing the best possible magnesium formula all comes down to knowing what to look for and what to try to avoid so that you never waste your hard-earned money.

Here are the top things to try avoid when shopping for a high-quality magnesium supplement:

All magnesium supplements are NOT created equal.

Magnesium Citrate

Magnesium Glycinate

Min. 70% of DRV of Magnesium

Zinc (min. 70%)

Only Contains 1 Type of Magnesium