The Best Magnesium of 2025: A
Buyer's Guide

Magnesium supplements are popular, but which one is the best for results?

Benefits
Top Mistakes
Best of 2025

IMPORTANT: If you’re trying to find the best magnesium supplement in 2025, you're in the right place. We tested the top 5 brands. Our research reveals the biggest mistakes shoppers make, why most magnesium is toxic, and which brand has 46x's less heavy metals than everyone else.

top 5 magnesium products
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‍WHAT IS MAGNESIUM?

Magnesium is a mineral found in every organ in your body. It is critical to bodily functions, the nervous system, and bone density. It is the most abundant mineral in the human body and has over 3,000 receptor sites.

According to Harvard University, more than 75% of adults are magnesium deficient because they aren't getting enough through their diets.

MAGNESIUM AFFECTS MANY BODILY SYSTEMS

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Musculature Systems
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Blood Pressure
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Mineral Bone Density
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Blood Sugar
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Turns Glucose Into Energy
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Stress and Nerves
Normally, we receive magnesium through our diet, leafy greens, nuts, beans, and fish. Because our food quality is getting worse, and chemicals are sprayed into our air, we have difficulty holding minerals in our bodies.
As we age, the problem is compounded. The result is a population where many of us are magnesium deficient. Supplementation is commonly suggested by medical practitioners.
Age Density Chart
According to PubMed.gov total and intercellular magnesium (found in our bones and cells) tend to decrease with age. Chronic deficiency has been linked to fatigue, depressed mood, inflammation, hypertension, diabetes, sleep, and heart issues.

‍However, adequate magnesium over long periods of time shows an increase in mineral levels in bones, and may prevent joint-related disease; it can balance muscular cramping and calm stress, which may help counteract the aging process.

A QUALITY MAGNESIUM SUPPLEMENT CAN

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Reduce Muscle Cramps and Spasms
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Increase Sleep Quality
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Improve Immune Systems
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Increase Bone Density
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Decrease Stress Responses
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Dramatically Improve Constipation
Studies show supplementing magnesium may help with muscle recovery and spasms, helping us sleep. It has a critical role in stabilizing the nervous system and blocking stress-related responses, helping us calm down.

‍Magnesium also can help block cortisol, the stress hormone that packs on the pounds. It increases water in the intestines, which is why it's used as a laxative.

LOW MAGNESIUM CAN CAUSE

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Headaches
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High Blood Pressure
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Weight Gain
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Anxiety and Stress
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Sleep Problems & Low Energy
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Leg Cramps

SOME OF US ARE LIKELY TO BE DEFICIENT

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Elders Over the Age of 65
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Those with Digestive Issues
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Low Mineral Holders
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Magnesium Absorbability Issues

MAGNESIUM AFFECTS MANY BODILY SYSTEMS

Magnesium comes in many forms.The human body absorbs them differently depending on what element is bonded to it. It's important to check the label and understand the differences.

Magnesium Glycinate: Glycinate is the preferred magnesium for sleep, cramping, blood pressure, and constipation. Widely considered the best form of magnesium on the market because of its incredible absorption rate.

Magnesium glycinate is sometimes called "magnesium bisglycinate," which is referring to the same thing.

Magnesium Citrate and Malate: Bound with citric or malic acid, these are some of the cheaper and more common forms found in supplements. They are well absorbed, but glycinate is preferred because it's easier on the stomach and often provides rapid results.

Magnesium Oxide: Bound with oxygen, this isn’t often used for anything outside of digestive issues. Glycinate is 4 times more absorbable than magnesium oxide.

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HOT TIP

Look for a magnesium formula with Zinc to boost effects. Zinc, when taken with magnesium in low doses, helps increase magnesium absorption.

Do not buy cheap magnesium, as they contain lead. Consuming heavy metals often causes lethargy, immune system dysfunction, and weakness.

MAGNESIUM AFFECTS MANY BODILY SYSTEMS

Not all magnesium glycinate is created equal. So, before spending your hard-earned money, make sure you don’t make these common mistakes.
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Cheap Blends: Some brands use cheap magnesium oxide to increase the milligrams per serving. This lowers the absorbability of the supplement and reduces its effect by 4 times.
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Side Effects: The only side effect you should experience with high quality magnesium is increased bowel movements, and a calmer demeanor...nothing more. All minerals can be hard to digest so it's best taken with food.
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Fake Reviews: Do not trust AMZN reviews as they are often bought and fake. This is a pervasive practice called "review farming." Just because a product has great reviews on a big marketplace does not mean it is quality.
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Heavy Metals: Chinese magnesium is unfortunately today's standard - it contains high levels of lead and arsenic. Our #1 product below was the only product powdered in the USA, and contains 46x's less heavy metals.
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BEST FIVE PICKS

Best Magnesium Glycinate of 2025

envitamin Ultra MagnesiumOther MagnesiumOther MagOther Mag 2
High Dose Magnesium Glycinate
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Third Party Lab Tested
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46x's Less Heavy Metals
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Elemental Magnesium Per Serving
200 mg
60 mg
200 mg
0 mg
90 Day Guarantee
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Confirmed GMP Certified
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1: Ultra Magnesium

by envitamin
5 Stars
Other Green Check
4.8 Average Reviews
Rank 1
Mag 3 Pack

A+
‍RATING

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PROS

Other Green Check
For Cramps, Sleep, Heart, and Stress
Other Green Check
200mgs of High Dose Magnesium
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Includes Low-Dose Zinc
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Third Party Tested Twice
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Made in the USA
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46x's Less Heavy Metals
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FDA Registered & GMP Certified
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Vegan Friendly

CONS

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Sells out often
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Only available on their website
ultra magnesium is the top choiceSupplement Facts Panel

The Bottom Line

We have never seen any magnesium quite like this.

The minerals use in the Ultra Magnesium are the perfect dosage; extracted from the Dead Sea, then powdered in Utah.

The outcome is the most bio-available, purest magnesium we've every tested.
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99% of magnesium sold today is powdered in China....containing 46x's more lead...and brands DO NOT want you to know that.

‍This will work best for both men and women searching for sleep, muscle cramping, blood pressure, and constipation support.

Over 80,000+ consumers use this magnesium and the reviews are strong.

There is one drawback. Demand is growing fast, so it has sold out a few times.

Tap the LEARN MORE button below and get a new customer promo code. They have a 90-day return policy so you have nothing to worry about.
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2: Magtech

by Natural Stacks
Rank 2
Other Magnesium

B
‍RATING

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PROS

Other Green Check
GMP Certified
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Third Party Tested
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Good Return Policy

CONS

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Lower Quality Magnesium Blend
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Low Glycinate Content
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No Zinc
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Big Capsules
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The Bottom Line

Magtech by Natural Stacks is a good magnesium product, containing 200mgs per serving. It's made up of 3 magnesium salts including threonate, glycinate, and taurate.We would recommend going with a magnesium glycinate-only product like our #1 pick, so you get the best absorbability. But if you insist on a magnesium blend, this is our #2 pick.

We can not confirm where they source their magnesium.Price starts at $37/bottle.
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3: Magnesium Glycinate

by Luma
Rank 3
Other Mag

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‍RATING

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PROS

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USA Standards
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Third Party Tested
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Just Glycinate
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Money Back Guarantee

CONS

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Only 200mgs per Serving
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Expensive for the Dose
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No Zinc
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15 days supply
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The Bottom Line

This formula is suitable for vegans. It contains 200mgs of magnesium glycinate per serving, which is standard for most brands. It has a 90-day return policy.Upon further investigation of their capsules, they are tinted brown, which is likely reflective of the binders and additives. If you look at the "other ingredients" on their label, there are 3 fillers/additives.

Overall, it's a decent pick coming in at #3.

Price starts at $36/bottle after shipping.
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4: Magnesium Caps

by NOW Foods
rank 4
Other Mag 2

C-
‍RATING

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PROS

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Made In the USA
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GMP Certified
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Vegan Friendly

CONS

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Low Quality Magnesium Blend
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No Glycinate/All Oxide
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Short Return Policy
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Outsourced Customer Service
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The Bottom Line

This is one of the best-selling supplement brands overall. Their magnesium caps have a blend of 3 magnesium types because this is cheaper than pure glycinate.It is mostly magnesium oxide which is not very absorbable and very cheap. These low-end magnesium salts pass through the body with minimal absorption. This option is better than nothing, and the brand has been around for a while.

Price starts at $29.99
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2025's Best Magnesium Supplement

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#1

Mag 3
by envitamin
5 Stars
Based on 4.8 Average Reviews

Ultra Magnesium
by envitamin

Other Green Check
For Cramps, Sleep, Heart, and Stress
Other Green Check
200mgs of High Dose Magnesium
Other Green Check
Includes Low-Dose Zinc
Other Green Check
Third Party Tested Twice
Other Green Check
Made in the USA
Other Green Check
46x's Less Heavy Metals
Other Green Check
FDA Registered & GMP Certified
Other Green Check
Vegan Friendly
Learn More