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When it comes to minerals your body needs, magnesium is at the top of the list. As many as 600 processes in your body rely on magnesium to be able to run smoothly, making it one important mineral.
Yet despite its importance, did you know that magnesium is one of the UK's most common nutritional deficiencies?
Lack of magnesium is commonly associated with low energy, inability to relax, poor sleep & cramps. And it can also cause issues with teeth & bones (because 60% of our body's magnesium gets stored in them!)
Taking a magnesium supplement is a way to help ensure you reach the recommended daily intake of magnesium —so that your body has one of the essential minerals it needs to function at its best.
But finding the most effective magnesium supplement can be daunting, time-consuming, and even expensive.
So we did the research for you... here's our ultimate guide on magnesium - plus the top 5 supplements to consider trying.
What Is Magnesium?
Magnesium is a naturally-occurring mineral that's found in every cell in your body.
As a building block for life on earth, we're surrounded by it at all times. It's in our water sources, the ground beneath our feet, and our vegetables, nuts, seeds, whole grains, fruits, fish, and meat.
It's estimated that nearly two thirds of the population are deficient in the recommended daily dose. This is partly due to dietary choices but also due to the the way conventional agriculture strips soil (and our food) of certain minerals.
Some of magnesium's most important roles for health include converting food into energy, keeping bones & teeth healthy, supporting your nervous system & boosting energy levels to reduce fatigue.
As an "essential" mineral, magnesium has to be continuously replenished because our bodies don't produce it. This means we need to constantly top up our levels through diet or supplementation.
Magnesium Benefits:
Sleep
Energy Production
Metabolism
Immunity
Bones & Teeth
Nervous System
Magnesium Supplement Buyers Guide
Magnesium supplements come in many different forms, ranging from tablets and capsules, through to drinks, powders, and even gummy vitamins. But not all supplements are created equally.
Here's what to look for and what to avoid when shopping for a high quality & effective supplement...
What To Look For:
1
Magnesium Citrate
Magnesium citrate is currently the most popular form of magnesium sold in supplements - and for good reason.
This is because it gets quickly absorbed into the body and easily dissolves into water. Plus it's also gentle on digestion since it has relatively high bioavailability.
If you're taking any magnesium supplement regularly, you'll want to make sure it's gentle on the stomach.
Generally, the higher the bioavailability, the better for daily use. And magnesium citrate is the cream of the crop for its overall versatility.
2
Non-Buffered Magnesium
If you're looking for a high quality magnesium supplement, always opt for the non-buffered form.
A “buffered” form of magnesium means that another molecule – generally magnesium oxide – has been “mixed in” with the active ingredient.
Magnesium Oxide is cheap, not well absorbed and can also have an unpleasant laxative effect.
Most supplements on the market contain buffered magnesium, but you won't know that unless you look for a supplement specifically that contains a non-buffered form.
What To Avoid:
Additives/Fillers
Read the back label of any supplement carefully and watch out for any synthetic fillers or additives. Avoid any unnecessary ingredients or bulking agents such as magnesium stearate, titanium dioxide, starch, iron oxide, or microcrystalline cellulose which don't offer any nutritional benefit.
Magnesium Oxide
Magnesium oxide is a common form of magnesium that has a low absorption rate. Some people use it as an antacid to relieve heartburn, sour stomach, or acid indigestion but is not recommended for daily supplementation. It is not well absorbed by the body and typically not as effective as citrate or other forms of magnesium.
High Dose Calcium
Your Magnesium Supplement Checklist:
GMP Standards
Buy from a reputable brand that submits their products for multiple rounds of quality testing, from raw ingredients to finished product. Look for products manufactured to the GMP code of conduct. This is a strict set of manufacturing and quality processes that help to ensure you're getting a premium quality, safe and effective product. Look for a manufacturer which adheres to GMP practices and displays this on their website or packaging.
Money Back Guarantee
It's important that any manufacturer stands behind their product and is willing to give your money back if you aren't happy with the results. Many manufacturers now offer an extended returns policy or 100% satisfaction guarantee for as long as 30 or 60 days. This gives you plenty of time to try the supplement "risk free" to make sure it's what you're looking for.
Our #1 Magnesium Pick For 2025: Puro Magnesium by Purolabs
For its ultimate combination of high potency magnesium citrate & ultra clean formula, Puro Magnesium is going to be the best bet for most people.
Each serving contains a pure & potent dose of true "non-buffered" magnesium citrate & is 100% free from sketchy additives, fillers & bulking agents which are commonly found in most supplements.
The plant-based capsules are 100% vegan-friendly and this product is also made in the UK to GMP standards with full ingredient traceability.
But what really sets it apart is the truly comprehensive 60 day, 100% satisfaction guarantee - allowing you to try the product risk-free for 60 days to ensure you see the benefits.
Why You'll Love Puro Magnesium
Superior quality "non-buffered" magnesium citrate in a highly effective dose
Made in the United Kingdom to GMP standards and with free UK delivery
Tasteless, vegan-friendly capsules (and reasonable serving size!) in a convenient travel-friendly bottle
Our #1 Pick
Purolabs
Ratings Breakdown
Quality
The commitment to quality is second to none. They focus on the highest-quality, most clinically-tested ingredients without the usual additives or fillers commonly found in most supplements.
Quality
The commitment to quality is second-to-none. They focus on the highest-quality, most clinically-tested ingredients without the usual additives & fillers found in most supplements.
Value
You can definitely find magnesium supplements cheaper -- but if you want true value for money, we think it's worth the investment in your health.
Value
You can definitely find magnesium supplements cheaper -- but if you want true value for money, we think it's worth the investment in your health.
Customer Experience
The website is easy to navigate; the delivery is fast and free; and the items come well-packaged. Customer feedback is excellent.
Customer Experience
The website is easy to navigate; the delivery is fast and free; and the items come well-packaged. Customer feedback is excellent.
Brand
While a relative newcomer, the brand has been on the scene for a couple of years now, slowly building their reputation for quality products with premium ingredients.
Brand
While a relative newcomer, the brand has been on the scene for a couple of years now, slowly building their reputation for quality products with premium ingredients.
Perks
The product comes with a truly risk-free 60 day 100% satisfaction guarantee so you can try the product first to ensure it's suitable for you.
Perks
The product comes with a truly risk-free 60 day 100% satisfaction guarantee so you can try the product first to ensure it's suitable for you.
Shop Our #1 Pick
Puro Magnesium by Purolabs
Other Options Worth Considering:
Pure Encapsulations Magnesium Citrate
This magnesium citrate supplement from the popular Pure Encapsulations is a high quality, vegan-friendly formulation that contains no GMOs, gluten or other unnecessary additives.
It contains the highly bioavailable chelate form of magnesium citrate & was carefully formulated by experts to support your nervous system, psychological function, muscle function, bones & teeth. Overall it's another solid choice.
Chapter One Magnesium Gummies
Looking for a magnesium supplement for younger members of the family? Or perhaps you like the sound of getting your daily dose in the form of a tasty gummy bear vitamin? Then you'll love this popular product from Chapter One.
Each serving of 2 raspberry-flavoured gummies delivers 100mg of magnesium citrate and the taste is impressive. While gummies are unavoidably a little higher in sugar & additives, this is a super enjoyable way to get a magnesium boost.
Nature's Plus Magnesium Powder
Nature's Plus deliver a high quality powdered magnesium supplement providing a whopping 400mg of magnesium per serving in a highly bioavailable and absorbable form.
This unflavoured powder can be mixed into water or your favourite drink and was formulated to be extremely gentle on the stomach. While mixing powders daily can be inconvenient & the taste may not be for everyone, this is a high potency formula that's an impressive option.
Good State Ionic Magnesium
Billing itself as "professional grade", this liquid drop magnesium supplement from US-based manufacturer Good State has been "reduced to nano-sized particles for better absorption into the body" according to the manufacturer.
Each serving of 10 drops can be taken with water or juice, with a bottle lasting approximately 80 servings. This product is definitely one to consider if you're interested in a high quality liquid supplement.
Shop Our #1 Pick
Puro Magnesium by Purolabs
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