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The Best Magnesium Supplements, According To Experts
Written By Supplement Institute Review Team
Magnesium is a powerhouse mineral that’s crucial for your body, playing a vital role in everything from muscle and nerve function to keeping your bones strong and your energy levels up. It’s found in many foods, yet surprisingly, a lot of us still don’t get enough from our diets alone. A magnesium shortfall can lead to a range of issues, like constant fatigue, headaches, difficulty concentrating, insomnia, anxiety, and even depression.
If you’re experiencing any of these symptoms, or if you’re simply committed to boosting your overall health, it’s worth considering a magnesium supplement. There’s a variety out there, each with its own unique blend of ingredients. As health enthusiasts and experts in the field, we’ve carefully selected and reviewed the top magnesium supplements of 2025.
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Comparing the Best Magnesium Supplements of 2025
BioEmblem Magnesium Supplements
Best Overall
Meet your magnesium match: BioEmblem Magnesium Supplement. Elevate your well-being with this powerhouse that goes beyond the basics. With a triple magnesium complex—featuring glycinate, malate, and citrate—this supplement delivers a potent punch of 300 mg, ensuring maximum absorption and effectiveness.
Your nerve and muscle functions are in for a treat as these supplements support them to their peak. But BioEmblem doesn’t stop there; it’s your holistic health partner. Picture a healthier heart, a sharper mind, and an uplifted mood—all thanks to the comprehensive benefits of magnesium. The magic extends to your bones and muscles, too. Count on magnesium to regulate essential nutrients like calcium and zinc, maintaining robust bones and denser bone density. Post-workout, it aids in muscle recovery, making it an ideal companion for fitness enthusiasts.
Worried about purity? Fear not. BioEmblem takes quality seriously, with 3rd-party testing ensuring accuracy and purity. And here’s the cherry on top: vegan, gluten-free, non-GMO, and free from preservatives, artificial ingredients, fillers, or stearates. It’s not just a supplement; it’s a commitment to your health. Say goodbye to compromise; say hello to BioEmblem Magnesium Supplement—the best overall choice that sets a new standard in magnesium excellence.
Nutricost Magnesium Supplements
Best for Digestive Relief
The Nutricost Magnesium Supplement offers an effective and convenient source of magnesium for those looking to supplement their diet. Each bottle contains 240 capsules, providing 120 servings, with 420mg of magnesium in each serving and 210mg in each capsule. What makes these capsules so appealing is that they are made from plant-based veggie capsules, ensuring that they are non-GMO and gluten-free, making them perfect for those who have specific dietary considerations. The capsules do not contain soy, offering a product that is both allergen-free and vegan-friendly.
As magnesium plays an integral role in many bodily functions, from regulating blood sugar levels to managing nerve and muscle functions, Nutricost’s magnesium supplement is a great way for those looking to supplement their magnesium intake to do so conveniently and effectively. Plus, the pleasant flavor of the magnesium glycine chelate is gentle on the stomach, making it easy to take this supplement daily. For these reasons, this supplement is the best overall on our list.
Mag-Ox 400 Magnesium Supplements
Most Concentrated Magnesium
The Mag-Ox Magnesium Supplement is a pharmaceutical-grade mineral supplement that helps to maintain normal muscle and nerve functions. This is the most concentrated form of magnesium available, providing 482 mg in each two-tablet dose. By providing this high amount of magnesium, Mag-Ox helps to support over 300 chemical reactions within the body. Magnesium has been shown to be critical in helping to convert carbohydrates, protein, and fat into energy, as well as supporting the formation and release of energy from cells.
The fact that up to 75% of Americans don’t get enough magnesium in their diets makes Mag-Ox an even more attractive option. It’s designed to meet or exceed the recommended daily allowance, while multivitamins offer a fraction of this amount. Many medications including diuretics, proton pump inhibitors, cisplatin, and cyclosporin can deplete magnesium in the body, making it essential to replenish these levels through supplementation.
Purely Holistic Magnesium Supplements
Most Value
If you are looking for an easy way to get more magnesium into your diet, Purely Holistic Magnesium Supplement is a perfect choice. Containing 400 milligrams of magnesium per tablet, these supplements assist in muscle function, electrolyte balance, and proper functioning of the nervous system. With its chelated form of magnesium from magnesium glycinate, this product delivers superior bioavailability and quickly disintegrates in the body, so you can get the full benefit of this essential mineral.
This product is free from artificial colors, flavors, sweeteners, or preservatives that might make you feel queasy or cause an allergic reaction. And, because it’s unflavored, you won’t have to deal with any weird tastes or smells either. It is also vegan and vegetarian friendly, making it an excellent choice for those following a plant-based lifestyle. Overall, because of their high potency and quick absorption, these magnesium supplements stand at the top of our list.
MAGNOX Magnesium Supplements
Most Beneficial
The MAGNOX Magnesium Supplement is a revolutionary new way to reduce stress and improve daily life. This supplement features the only magnesium vitamins with a scientific 1:10 ratio of potency-rich magnox and ultra-concentrated B6, meaning you get maximum benefits without having to worry about questionable herbs.
The rapid absorption formula within Magnox helps promote soothing muscle tension relief and can even aid menstrual cramp relief. The powerful co-factor nutrient infusion has been triple internationally patented, offering amazing effects like improved sleep, decreased stress, enhanced digestion, and increased muscle happiness- all within just one week. When taken, this magnesium supplement won’t cause any surprising stomach upset because of its purity, potency, power, safety, and effectiveness which have all been tested by certified labs. It’s free of GMOs as well as any harsh chemicals and is 100% cruelty-free.
Natural Vitality Magnesium Supplements
Natural Vitality
If you’re looking for a way to relax from the stresses of daily life or want to keep your body running optimally, try the Natural Vitality Magnesium Supplement. Packed with magnesium and other essential nutrients, these supplements help support healthy bones and muscles while improving cardiovascular health and muscle function.
Additionally, these gummies are gluten-free and vegan, making them suitable for those with dietary restrictions. Even better, they contain kid-friendly ingredients, so if your child is suffering from stress or has other health issues, you can feel comfortable giving them these gummies. Available in two delicious flavors — raspberry-lemon and orange — one bottle contains 120 gummies, which is enough to last up to two months.
Nature’s Bounty Magnesium Supplements
Premium Ingredients
Nature’s Bounty Magnesium Supplement is just what you need to get your magnesium levels back on track. Each tablet contains 500 milligrams of magnesium, which is the recommended daily dosage for adults. This important mineral supports bone and muscle health while also helping to maintain healthy blood pressure levels.
What makes these magnesium supplements stand out from the competition is their purity. This product does not contain artificial flavors or sweeteners, so you don’t have to deal with allergies or harmful side effects like nausea and cramps. They are also gluten-free, so they’re great if you’re looking for a supplement that works with your dietary needs. On top of everything, these magnesium supplements are easy to swallow, making them a great choice for anyone who wants to improve their overall health without struggling to take a pill.
Nature Made Magnesium Supplements
Best for Chronic Headaches
Nature’s Bounty Magnesium Supplement is a great way to get the essential nutrients that you need. Coming to you in a bottle of 100 tablets, each supplement contains 250 milligrams of magnesium that helps support healthy heart rhythm, reduce high blood pressure, support strong bones and healthy teeth, and prevent muscle cramps and spasms. And let’s not forget to mention how they can improve mental health, treat chronic headaches, and support your general well-being.
Just like other products on our list, this one is free of artificial flavors and sweeteners, so you can take it without worrying about an upset stomach or other side effects. The tablets are also sugar-free and gluten-free, making them a great choice for those who suffer from diabetes or other food allergies.
NOW Magnesium Supplements
Best for Neuropathy Relief
NOW is a well-known brand that has been manufacturing quality vitamins and supplements since 1968 and their magnesium supplements are no exception. Formulated with top-quality ingredients, these supplements contain 400 milligrams of magnesium that can help with muscle contraction, nerve impulse transmission, bone mineralization, and energy production. It is also a required cofactor for an estimated 300 enzymes, meaning it helps optimize many bodily functions.
This supplement can also help reduce stress and anxiety, which is important for those who suffer from neuropathy. The ingredients are non-GMO, vegetarian, and gluten-free, so there’s no need to worry about any side effects either. Most importantly, though, these supplements are GMP-and Kosher-certified, so you can rest assured that they are safe and effective. As the cherry on top, these supplements are easy to take as well, with only one pill a day needed.
Buying Guide: Magnesium Supplements
Magnesium might just be the unsung hero of the nutritional world. From supporting healthy brain and muscle function to preventing cramps, keeping bones strong, and regulating blood pressure, magnesium is a nutrient that we need to live our daily lives. It also helps us fall asleep, be more productive at work, and even keep anxiety at bay. And, of course, it prevents the unpleasant symptoms of magnesium deficiency.
But before you head to the pharmacy and load up on magnesium supplements, you should take into consideration the source of magnesium, type, quantity, bioavailability, form, solubility, purity, price, and reputation of the manufacturer. Here is a comprehensive guide to help you make an informed decision when choosing a magnesium supplement.
How To Choose Quality Magnesium Supplements?
Type of magnesium
The type of magnesium found in supplements can vary greatly, the most common being oxide, citrate, glycinate, malate, and aspartate. Each type has its own set of benefits and drawbacks.
Oxide is one of the least expensive forms and can be used as an antacid to relieve symptoms of heartburn, sour stomach, and acidity, but is not easily absorbed by the body. Citrate, on the other hand, is very absorbable and well-tolerated. Glycinate is best for those with digestive issues, while malate is excellent for energy production. Last but not least, aspartate is good for muscle and nerve function. Be sure to choose a supplement that contains a type of magnesium that meets your specific needs.
Quantity
When reviewing the amount of magnesium in a supplement, pay attention to how many milligrams of magnesium is available in each dose. Depending on your needs, you may require more or less than what is in the supplement. Additionally, make sure that you carefully read instructions, as some supplements need to be taken multiple times per day in order to obtain the full recommended daily value (RDA).
Bioavailability
Bioavailability refers to how well a specific substance can be absorbed by the body after it’s ingested. Different forms of magnesium have different levels of bioavailability; therefore, look for supplements that contain forms that are easily absorbed by your body, such as citrate or malate. Additionally, look for additives—such as chelators—or enzymes that help increase absorption and enhance bioavailability.
Solubility
Just like bioavailability, you should check the solubility of the supplements before buying. Magnesium supplements can either be water-soluble or lipid-soluble, depending on their form. Water-soluble forms are more readily absorbed by the body, while lipid-soluble forms tend to stay within cells longer and provide sustained release over time. Whatever form you choose, they should be taken with food to avoid gastrointestinal distress.
Purity
Lastly, you should check the ingredient list to make sure that the supplement you’re buying is made with pure magnesium. Oftentimes, manufacturers add fillers or artificial sweeteners, which can affect absorption rates or lead to potential health issues over time. To ensure the safety and purity of ingredients, it is best to look for all-natural products that are free from additives and unnecessary ingredients.
Other Important Factors To Consider Regarding Magnesium Supplements
Form of consumption
Magnesium supplements are readily available in two main forms: tablets/capsules/pills and powder. Powder forms of magnesium, and any supplement, will be more rapidly absorbed by your body because your stomach acid does not have to break down a barrier to access the mineral.
For most individuals, however, this shouldn’t be too big of a factor when purchasing. Whether you choose a pill or powder form should largely come down to other factors:
- Do you have difficulty swallowing pills?
- Is it more convenient for you to take a pill than it is to mix together a magnesium powder with water?
- How much do you want to spend? (Powder form is typically cheaper than pill form, but it can vary depending on the specific type of magnesium you purchase)
Time of consumption
When it comes to medicine or supplements, one of the most often asked questions is when you should take them. Luckily, for magnesium, the time of the day you take it isn’t as important as the fact that you take it consistently every day at the same time.
A lot of people choose to take magnesium shortly before they go to bed, as it helps relax and calm their bodies, potentially aiding in a better night’s sleep. A lot of people, however, already take other supplements in the morning, so it makes sense to add their magnesium supplement to that routine.
Regardless of when you take it, it is recommended that magnesium supplements are taken with food, as taking them on an empty stomach can cause adverse effects such as diarrhea.
Amount of consumption
The amount of magnesium you take each day (RDA) will differ based on whether you are male or female, your age, or pregnant/breastfeeding. For example, for adult and teenage males, the RDA is 400-420 mg, while for women of the same age, it is lower at 310-320 mg.
Always consult with your doctor for your specific daily intake, as it may be adjusted based on the level of deficiency you have.
People Also Asked
What are the benefits of taking magnesium supplements?
The main benefits of taking a magnesium supplement include increased energy levels, improved sleep quality, reduced stress and anxiety levels, enhanced mood, improved digestion, and relief from muscle cramps and headaches.
How much magnesium do I need?
The recommended daily intake of magnesium is 400 to 420 milligrams for men (ages 19 to 30) and 310 to 320 milligrams for women (ages 19 to 30). It is important to consult your healthcare provider before starting any new supplements to ensure that you are taking an appropriate dose and there are no interactions with any medications you are currently taking.
How should I take magnesium supplements?
It is best to take magnesium supplements with food or after a meal, as this helps reduce the potential gastrointestinal side effects associated with taking high-dose supplements on an empty stomach.
Are there any side effects of taking magnesium supplements?
Magnesium supplements are generally safe and well-tolerated. But, if you take too much magnesium, it can cause diarrhea and other gastrointestinal side effects. Additionally, people with certain medical conditions, such as kidney disease, should not take supplements without consulting their healthcare provider first.
How long does it take for magnesium supplements to work?
It typically takes one to two weeks for a magnesium supplement to start working, depending on your health status and how quickly your body absorbs the supplement.
How do I know if I need a magnesium supplement?
If you suffer from any of the following symptoms, you may be deficient in magnesium:
- Fatigue or lethargy
- Muscle weakness and cramps
- Constipation or diarrhea
- Insomnia or restless sleep
- Irritability, anxiety, or panic attacks
- Poor coordination
Is it safe to take magnesium supplements during pregnancy or breastfeeding?
Yes, it’s safe to take magnesium supplements during pregnancy or breastfeeding. When taken in the recommended daily amounts, magnesium supplements can help with a variety of pregnancy-related issues, such as high blood pressure, leg cramps, and restless leg syndrome (RLS) — it may even help prevent preterm labor in some cases. But just like other medications, it’s important to talk to your doctor before taking magnesium supplements.
I sweat a lot. Does that mean that I need more magnesium?
Yes and no. While sweating does mean that you’ve lost magnesium through your pores, it doesn’t necessarily mean that you need more. The best way to know if you need a magnesium supplement is by getting tested for serum magnesium levels and monitoring how much magnesium your body needs. Some people need more than others, but it depends on factors such as age and activity level.
How do I avoid a laxative effect from magnesium?
Some people find that magnesium causes diarrhea. If this is the case for you, try taking smaller doses of magnesium citrate (100 to 200 milligrams) with meals or before bed. This may help you avoid an uncomfortable laxative effect. Additionally, try increasing your water intake while taking magnesium citrate to help prevent diarrhea.
Can I take magnesium with calcium?
Yes, you can take magnesium with calcium. Magnesium and calcium work together to strengthen bones, so taking them both may be beneficial. But it is important to note that taking too much of one or the other could throw off their balance and cause several health issues like muscle spasms or cramps. To avoid any issues, take these supplements in a 2:1 ratio. For instance, if you take a 500-milligram calcium pill, you should also take a 250-milligram magnesium pill.
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