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Magnesium Supplements

Magnesium's Effect on Exercise

March 10, 2025

Taking magnesium may negatively affect exercise performance among people already with adequate levels, according to a recent study. Get the details in the Physical performance & exercise recovery section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Magnesium for Kidney Stones?

February 18, 2025

Might taking magnesium with meals reduce the risk of kidney stones? Find out in our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: Which supplements and foods reduce or increase the risk of kidney stones?

Low Magnesium Due to PPI Use

January 09, 2025

Be aware that long-term use of proton-pump inhibitors (PPIs, such as Prilosec, Nexium, and Prevacid) can cause magnesium deficiency. Magnesium supplementation is sometimes not enough to reverse this. Learn more in our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Magnesium Interacts with Thyroid Medication

November 25, 2024

Be aware that some forms of magnesium can interact with the thyroid medication levothyroxine (Synthroid). Get the details in the Concerns and Cautions section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Also see our article about supplements and foods to avoid or use when taking levothyroxine.

Magnesium to Reduce Urinary Frequency?

October 21, 2024

Does taking magnesium reduce the number of times a person with urinary frequency needs to urinate? Find out in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: 10 Supplements That May Help Reduce Nighttime Urination (And 5 That May Not)

Magtein for Sleep?

September 09, 2024

Did taking magnesium L-threonate (Magtein) improve sleep? Find out what a recent study showed in the Sleep section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Also see: Which supplements and lifestyle changes improve sleep, and which cause insomnia?

Magnesium for Dizziness?

August 05, 2024

Does taking magnesium reduce dizziness in people who experience vertigo with migraine (vestibular migraine)? Find out what a recent study found in the Migraine section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Caution with ZMA

July 25, 2024

Zinc magnesium aspartate (ZMA) is promoted among athletes for improving athletic performance and regulating sleep, but this supplement may actually reduce sleep time, according to a recent study. Get the details in the Concerns and Cautions section of our Magnesium Supplements Review which includes our Top Picks among magnesium supplements.

Magnesium for Dental Implants?

June 11, 2024

Does taking magnesium improve the outcomes of dental implant placement? Find out what a recent study showed in the Bone Health section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Magnesium for Sleep

June 04, 2024

Which form of magnesium helps with sleep? See the Sleep section of our Magnesium Review, which includes our Top Picks for magnesium.

Magnesium Top Pick

May 17, 2024

We’ve added a 2^nd Top Pick for magnesium. It’s well absorbed, with a lower risk of causing diarrhea. Get the details in the Top Picks section of our recent Magnesium Supplements Review.

Magnesium, Sleep Apnea & Restless Legs

May 10, 2024

Does taking magnesium help with sleep apnea? Does it help with restless legs syndrome? These questions are addressed in our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: Do any supplements help with restless legs syndrome?

Magnesium Threonate for Memory?

May 07, 2024

Is magnesium threonate (found in Magtein) better than other forms of magnesium for memory and cognition? Find out in the Dementia and cognition section of our Magnesium Supplements Review.

Also see our Top Pick among magnesium supplements.

Mislabeled Magnesium

May 03, 2024

In response to a lawsuit, a popular brand of supplements is now providing refunds to people who purchased one of its magnesium products. The suit alleged that the products were mislabeled regarding the form of magnesium they contained. See the Update in our Magnesium Supplements Review, which includes our Top Pick for magnesium.

Similarly, one of the magnesium products covered in our recent Review also seems to have its form of magnesium mislabeled despite providing the correct amount of magnesium. We have changed its status to Not Approved (see the Update).

In addition, a company that sells a magnesium supplement that was Not Approved by us responded to a question about this from a ConsumerLab member. The response suggests that the company does not understand that its product is mislabeled (see the Update).

Magnesium for Leg Cramps?

April 30, 2024

Does magnesium reduce leg cramps? Find out what studies have shown in our Magnesium Supplements Review.

Also see our recent Top Pick among magnesium supplements.

Magnesium for Anxiety and Sleep?

April 30, 2024

Do magnesium supplements reduce anxiety or improve sleep? See what studies have shown for anxiety and sleep and also learn about the product Natural Vitality Calm which we tested in our recent Magnesium Supplements Review.

Magnesium Glycinate – What to Look For

April 09, 2024

Some magnesium glycinate supplements are not truly this chelated form of magnesium. Find out what to look for on labels to help ensure you’re getting chelated magnesium glycinate in the ConsumerTips section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Magnesium for Diabetes?

November 10, 2023

Does magnesium supplementation improve insulin sensitivity or blood sugar control in people with type 2 diabetes? See what a recent study found in the our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Also see: Which supplements and foods can help lower or control blood sugar?

Magnesium for Tinnitus?

September 22, 2023

Does taking magnesium reduce ringing in the ears from tinnitus? Find out in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Also see: Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?

Magnesium for Anxiety?

July 21, 2023

Does taking magnesium reduce anxiety? Find out what research has shown in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Also see: What are the best supplements for depression and anxiety?

Meds that Affect Magnesium

June 09, 2023

Some medications decrease magnesium in the body. These include medications that lower stomach acid as well as chemotherapy agents. Get the details in the Deficiency section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?

Magnesium for Arthritis?

May 23, 2023

Find out if magnesium is beneficial for preventing or reducing the severity of osteoarthritis or rheumatoid arthritis in our Magnesium Supplements Review.

Also see our answer to the question: Which supplements can help with arthritis?

Magnesium and Artery Calcification

February 10, 2023

Did magnesium supplementation slow coronary artery calcification in people with chronic kidney disease? See what a recent study found in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Magnesium for Gout?

January 10, 2023

Can low blood levels of magnesium increase the risk of gout, and does magnesium supplementation help? Find out in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: Which supplements and foods help with gout and which may worsen it?

Misleading Magnesium Products

December 09, 2022

Fourteen magnesium supplements sold on Amazon were found to be mislabeled and/or not contain the forms of magnesium claimed on labels, according to a report from a competing supplement company. Get the details in the What to Consider When Buying section our Magnesium Supplements Review.

Medications That Interact With Magnesium

December 06, 2022

Be aware that many types of medication can interact with magnesium, including one that was recently reported to raise magnesium levels, requiring a reduction in magnesium supplementation. Get the details, and learn about 15 types of medication that interact with magnesium in the Concerns and Cautions section of our Magnesium Supplements Review.

Theraworx for Nighttime Leg Cramps?

April 15, 2022

Does Theraworx, a topical homeopathic magnesium product, relieve nighttime leg cramps? See what a study found in the Magnesium Creams, Sprays and Oils section of our Magnesium Supplements Review.

Magnesium for Insomnia?

February 25, 2022

Can magnesium supplementation improve sleep in people with insomnia? Find out what research suggests in the What It Does section of our Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.

See our answer to the question: Which supplements can help me sleep and which cause insomnia?

Magnesium for Lowering Blood Pressure?

January 13, 2022

The FDA recently allowed supplements and foods that provide magnesium to make a claim regarding blood pressure reduction. But there is more to the story. Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.

Magnesium for Metabolic Syndrome?

December 09, 2021

Can magnesium supplementation lower blood sugar and blood pressure in people with metabolic syndrome? Learn what a new study found in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.

How Forms of Magnesium Compare

July 30, 2021

Magnesium supplements are used to raise magnesium levels (which requires good absorption from the gut), as laxatives, and as antacids. The best form of magnesium depends on why you're taking it. To help you choose the right form, we've put together a magnesium comparison table. Also see our Top Picks among magnesium supplements.

Magnesium & Memory

July 20, 2021

Does supplementation with magnesium (as magnesium L-threonate, Magtein) improve cognition in people with dementia? Find out in the Dementia & Cognition section of our Magnesium Supplements Review.

Magnesium for Leg Cramps?

July 12, 2021

Can magnesium supplementation reduce leg cramps? See what a recent analysis of the data showed for leg cramps in pregnant women. Also see the evidence for use by older men and women in our Magnesium Supplements Review.

Also see our answer to the question: Do magnesium creams, sprays and oils help with muscle pain and cramps? How about supplements?

Caution With Too Much Magnesium

June 25, 2021

Magnesium can be an effective laxative, but taking too much magnesium can be very dangerous, as was recently reported. Get the details in the Concerns and Cautions section of our Magnesium Supplements Review.

Also see our answer to the question: Which supplements can help treat constipation?

Best Form of Magnesium?

April 30, 2021

Find out how forms and formulations of magnesium differ, and their usefulness for different conditions. See the Choosing the Right Form of Magnesium section of our Magnesium Supplements Review. Also see our Top Picks for magnesium.

Magnesium for Parkinson's Disease?

April 26, 2021

Can taking magnesium help treat Parkinson’s disease? Find out what research shows in the What It Does section of our Magnesium Supplements Review. Also, be aware that Parkinson's medication can affect absorption of magnesium and vice versa.

Magnesium, Niacin and Blood Pressure

January 09, 2021

Two studies this week showed the risk of high blood pressure to be lowest among people with adequate, but not excessive, dietary intakes of magnesium and niacin.

Also, see which foods are good sources of magnesium and, separately, good sources of niacin.

Magnesium for Muscle Soreness?

October 09, 2020

Can magnesium supplementation decrease muscle soreness after exercise? See what a new study found in the What It Does section of Magnesium Supplements Review. Also see our Top Picks for magnesium.

Magnesium for Lowering Blood Pressure?

September 21, 2020

Can magnesium supplementation lower elevated blood pressure? Find out what a new study showed in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium supplements.

Magnesium Can Boost Cognition

April 18, 2020

A clinical study has shown that cognitive function can be improved by as much as 9% in some people just by supplementing with magnesium. Get the details and find out if magnesium might help you in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.

When Magnesium Doesn't Seem to Help

January 27, 2020

Getting the recommended amount of magnesium has been associated with bone benefits. However, there was an increased risk of hip fracture among people who used a particular form of magnesium, according to a recent analysis. Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Pick for magnesium.

Magnesium for Leg Cramps?

January 13, 2020

Magnesium if often touted for treating leg cramps. Does it really work? See what studies have shown, including a recent study among pregnant women, in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.

Heart Disease & Magnesium

December 13, 2019

Women with the lowest daily intakes of magnesium were found to have the highest risk of fatal coronary heart disease in a recent study, which is consistent with other studies of magnesium and heart health. See the What It Does section of the Magnesium Supplements Review for details about this association. Also see our Top Picks among magnesium supplements.

Magnesium-L-Threonate for Memory?

November 22, 2019

What is the evidence that a special form of magnesium helps people with memory and concentration impairment? Find out in the Dementia and cognition section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.

Magnesium for Memory

November 18, 2019

There is growing evidence that getting the right amount of magnesium reduces the risk of developing cognitive decline and dementia. For details, including results of a new study, see the Dementia and cognition section of the Magnesium Supplements Review. Also see our Top Pick among magnesium supplements.

Does Magnesium Reduce Exercise Soreness?

October 21, 2019

Can taking magnesium reduce muscle soreness after exercise? See what a new study found in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium supplements.

Magnesium & Metabolic Syndrome

June 08, 2018

A study shows that magnesium can significantly help some people suffering from metabolic syndrome (i.e., high blood sugar, high blood pressure, and related symptoms). Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.

Magnesium for Depression?

June 01, 2018

Magnesium may help some people with depression according to a recent placebo-controlled study. Learn more in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.

Reducing Dementia With Magnesium?

October 13, 2017

In a recently published study, investigators looked to see if taking a magnesium supplement reduces the risk of dementia. See what they found in the "What It Does" section of the Magnesium Supplements Review >>

Caution When Taking Epsom Salt

October 02, 2017

A case of liver injury was recently reported in a man taking a large daily dose of Epsom salt (magnesium sulfate). Get the details, plus more about safety issues with magnesium supplements in the "Concerns and Cautions" section of the Magnesium Supplements Review >>

Magnesium and Dementia

September 22, 2017

A recent study found an association between magnesium levels in the blood and the risk of developing dementia. See the details in the "What It Does" section of the Magnesium Supplements Review >>

Magnesium Cream?

August 05, 2017

Is rubbing a cream into your skin a good way to get magnesium? We reviewed several studies of magnesium creams or sprays, including one just recently published. See what we found in the "What It Does" section of the Magnesium Supplements Review -- which includes our Top Picks among magnesium supplements.

Magnesium Lowers Risk of Fracture

July 07, 2017

Higher intake of magnesium from the diet and supplements was found to significantly reduce the risk of fractures in a study of older men and women. Details are in the "What It Does" section of the Magnesium Supplements Review, which includes our Top Picks among products.

Magnesium for Leg Cramps?

February 27, 2017

Magnesium supplements are sometimes promoted for leg cramps. However, a recent study among older men and women found that taking a particular form of magnesium at bedtime did not reduce nighttime leg cramps. Get the details about the study, plus other uses of magnesium, in the "What It Does" section of the Magnesium Supplements Review (which includes our tests of products) >>

Many Benefits of Magnesium

February 03, 2017

An analysis of studies involving more than one million people found that rates of stroke, heart failure, type 2 diabetes, and death were lower when intakes of magnesium were higher. For details see the "What It Does" section of the Magnesium Supplements Review (which includes our tests of products) >>

Magnesium and Heart Disease

July 15, 2016

People with lower blood levels of magnesium were 36% more likely to die from heart disease than those with moderate levels according to a new, long-term study. For more details, see the "What It Does" section of the Magnesium Supplements Review >>

Magnesium Lowers Blood Pressure

July 12, 2016

Magnesium supplementation may help to lower blood pressure, but only in those who are deficient in the mineral, according to a new analysis. Get the details in the "What It Does" section of the Magnesium Supplements Review >>

Magnesium Helps in Prediabetes

July 28, 2015

A recent study in people with prediabetes who were deficient in magnesium showed that a daily dose of magnesium significantly improved their glucose status. Details, along with our recent tests of magnesium supplements, are found in the Magnesium Supplements Review »

Magnesium Improves Women's Physical Performance

July 22, 2014

A new study found that daily intake of a magnesium supplement significantly improved physical performance among older women compared to those given a placebo. Interestingly, none of the women in the study were deficient in magnesium based on blood tests. Get the details, including the dose and type of magnesium supplement used, as well as our quality ratings of magnesium supplements, in the updated Magnesium Supplements Review >>

Magnesium and Bone Health

May 11, 2013

New research shows why getting adequate magnesium is important for bones -- but this doesn't mean that you must take a magnesium-containing supplement. Get more information in our updated Magnesium and Calcium-Magnesium Supplements Review >>

Less Stroke With More Magnesium

February 25, 2012

Slightly higher intake of magnesium from the diet was associated with an 8% lower risk of stroke, based on an analysis of several studies. This doesn't necessarily mean you should get more magnesium from supplements, though. For details, see the updated information in the Magnesium Supplement Review. More >>

Antacids and Magnesium -- Be Careful!

March 08, 2011

There is a new alert that long-term use (over a year) of proton pump inhibitors can cause low magnesium levels. Magnesium supplements can usually help. See the Magnesium Product Review for details including symptoms of magnesium deficiency and a list of affected products. More >>

Insulin Sensitivity and Magnesium

January 10, 2011

A recent study found that magnesium supplementation improved fasting glucose levels in insulin insensitive, obese people. While a similar effect has been seen in magnesium deficient people, the new study found benefit in people who had normal magnesium levels. The research suggests that magnesium may help prevent the onset of type 2 diabetes in some people. See the Magnesium Supplements Review for the type and dose of magnesium used and more >>

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Clinical Updates

Magnesium Supplements

Magnesium's Effect on Exercise

March 10, 2025

Magnesium for Kidney Stones?

February 18, 2025

Low Magnesium Due to PPI Use

January 09, 2025

Magnesium Interacts with Thyroid Medication

November 25, 2024

Magnesium to Reduce Urinary Frequency?

October 21, 2024

Magtein for Sleep?

September 09, 2024

Magnesium for Dizziness?

August 05, 2024

Caution with ZMA

July 25, 2024

Magnesium for Dental Implants?

June 11, 2024

Magnesium for Sleep

June 04, 2024

Magnesium Top Pick

May 17, 2024

Magnesium, Sleep Apnea & Restless Legs

May 10, 2024

Magnesium Threonate for Memory?

May 07, 2024

Mislabeled Magnesium

May 03, 2024

Magnesium for Leg Cramps?

April 30, 2024

Magnesium for Anxiety and Sleep?

April 30, 2024

Magnesium Glycinate – What to Look For

April 09, 2024

Magnesium for Diabetes?

November 10, 2023

Magnesium for Tinnitus?

September 22, 2023

Magnesium for Anxiety?

July 21, 2023

Meds that Affect Magnesium

June 09, 2023

Magnesium for Arthritis?

May 23, 2023

Magnesium and Artery Calcification

February 10, 2023

Magnesium for Gout?

January 10, 2023

Misleading Magnesium Products

December 09, 2022

Medications That Interact With Magnesium

December 06, 2022

Theraworx for Nighttime Leg Cramps?

April 15, 2022

Magnesium for Insomnia?

February 25, 2022

Magnesium for Lowering Blood Pressure?

January 13, 2022

Magnesium for Metabolic Syndrome?

December 09, 2021

How Forms of Magnesium Compare

July 30, 2021

Magnesium & Memory

July 20, 2021

Magnesium for Leg Cramps?

July 12, 2021

Caution With Too Much Magnesium

June 25, 2021

Best Form of Magnesium?

April 30, 2021

Magnesium for Parkinson's Disease?

April 26, 2021

Magnesium, Niacin and Blood Pressure