The Most Effective Magnesium Supplements In 2025 – A Buyer’s Guide
How important is magnesium? Learn all about this vital mineral, plus what to look for in a top-notch supplement.
In the world of health supplements, magnesium is one of the top dogs. At the cellular level, magnesium is involved in carrying out hundreds of different processes simultaneously throughout our bodies. In fact, without it, our bodies would completely shut down.
Magnesium helps to form enzymes, which then release energy from the food we consume, while also contributing to protein synthesis and electrolyte balance in the body. This vital mineral also aids in maintaining a healthy nervous system, muscle movement, and the development of healthy teeth and bones.
It's shocking to discover that the British population’s daily diets are greatly lacking this crucial nutrient. While Magnesium deficiencies do not pose any short-term health risks, they can cause concerns in the long run. If you are not getting enough Magnesium in your diet, you may be at risk of developing long-term health consequences, including high blood pressure, type 2 diabetes, osteoporosis, heart disease, poor immune health, increased stress, lack of sleep and more.
Fortunately, taking a magnesium supplement can help replenish your body's magnesium levels and keep them from falling to dangerous lows.
The Amazing Health Benefits Of Magnesium
- Healthy Bones
- Heart Support
- Better Sleep and Relaxation
- Fortified Immune Health
- Can Reduce Blood Pressure
- Improves Mood
- Improves Migraines
- & More...
With its multitude of health benefits, Magnesium supplements have become one of the most popular natural wellness products on the market. However, this also means that there are many different supplements to choose from, which can make it hard to differentiate the good ones from the bad ones.
Keep in mind, not all magnesium supplements are created equal. Different brands use different forms, and some formulas are simply going to be more effective than others, while some of them may actually have very unexpected consequences!.
At Hey Reviews, we've analyzed some of the top-selling magnesium supplements on the market to help guide you in the right direction. We'll show you what to look for and what to avoid in a high-quality supplement, plus, we share our top 5 picks of the year.
What should I look for in my supplement?
High-potency
When buying a Magnesium supplement, you need to ensure that the ingredients are delivered in potent doses if you want to reap all the benefits your product has to offer. Most Magnesium supplements include a great list of ingredients, but the potency is lacking. When choosing your supplement, make sure to look for one that contains about 200mg or more of elemental Magnesium.
Most Bioavailable Magnesium
When searching for your Magnesium supplement, it’s important to look for one that contains the following three types of Magnesium:
- Magnesium Citrate
- Magnesium Glycinate
- Magnesium Malate
Numerous studies have found that these three forms of Magnesium have the highest bioavailability, and therefore, they are the most easily absorbed. Most Magnesium supplements only contain 1 or 2 types of Magnesium to cut down on production costs, so it’s essential to check when choosing your product to ensure you get a Magnesium supplement that contains all 3 types.
Added Zinc
Zinc is an essential ingredient to look for in a quality Magnesium supplement as it helps to increase the absorption of magnesium. Moreover, it also helps to improve immune function, speed up wound healing and reduce inflammation.
Money-back guarantee
Look for a product that offers a money-back guarantee on all purchases. Offering a money-back guarantee is a sign that a company is confident in the quality of the products they are providing.
What should I avoid?
Beware of online reviews (especially on Amazon).
Before purchasing any product, one of the first things we do when researching it is check its online reviews. Unfortunately, these are not always a trustworthy way to measure the quality and effectiveness of a product. Companies often pay for reviews on popular online retailers, like Amazon, to try and trick their way to a five-star rating. While you should definitely consult these reviews before purchasing, do your own research as well.
Supplements with calcium
While it’s equally important to get enough calcium in your diet, consuming too much of this mineral can sometimes hinder the effects of Magnesium, particularly when they are taken together, as it can affect absorption.
Supplements containing ONLY Magnesium Citrate
While it's true Magnesium Citrate is a highly absorbable form of Magnesium, taking too much of this form of magnesium has a laxative effect; and you'll be stuck on the toilet! It should instead only be part of the formula, like our #1 choice!
Poor quality ingredients and low potency.
Watch out for supplements that add unnecessary ingredients or synthetic additives.
How we evaluated the top 5
For years now, scientists have praised the numerous health and wellness properties of Magnesium supplements, which has led them to become one of the most in-demand health products on the market. While this means you have many options to consider when choosing your supplement, it can also be difficult to narrow down which ones will deliver the best results.
We researched the top-rated Magnesium products on the internet to find the best ones available and evaluated them based on product quality, customer service, and pricing.
Here is our top 5 Magnesium supplement picks for 2025.
1. Magnesium Complex
Total Ranking
980 votes
9.7/10
A+
Overall GradePROS
- GMP-Certified & Lab Tested
- Supported by Healthcare Professionals
- High-Quality, Pure, Natural Ingredients
- Triple Magnesium & Double Zinc Formula
- Certified Vegan, Non-GMO, Gluten-, Dairy-, & Soya-Free
- Backed By a 100% Satisfaction Guarantee
CONS
- Only Available for Online Purchase
The Bottom Line
Theonia's Magnesium Complex stands out among other supplements, offering superior results with its potent ingredients, including 205mg of Elemental Magnesium, Vitamin D3, and unique Zinc combinations.
Unlike most competitors, Theonia's product incorporates all three recommended types of Magnesium, providing the perfect 205mg dosage. Next to their added Zinc and a small dose of Vitamin D3, their vegan-friendly formula is also free of gluten, GMOs, and common dietary allergens, appealing to a wide audience.
But what we really love is that Theonia's UK-manufactured product comes with a 60-day money-back guarantee, making it a risk-free choice, too. Theonia earns our number one spot as a top-notch magnesium supplement—a compelling option for long-term use and optimal benefits, perfect for everyone!
*Results are based on the TheoniaLiving Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.
Learn More2. Magnesium Complex
Total Ranking
765 votes
9.3/10
A
Overall GradePROS
- Vegan-Friendly & GMO-Free
- Recommended By Healthcare Professionals
- Features all 3 Types of Magnesium
- Includes 2 Kinds of Zinc
- 60-Day Money-Back Guarantee
CONS
- Only Available Online
- Express Delivery Limited to the UK & European Countries
The Bottom Line
Hey Nutrition's Magnesium Complex is a solid contender, earning our praise for being vegan-friendly, GMO-free, and endorsed by healthcare professionals. Notably, it features all three types of Magnesium and includes two kinds of Zinc (Zinc Citrate and Zinc Ascorbate), providing a comprehensive approach to supplementation. The added assurance of a 60-day money-back guarantee adds to its appeal, which we love
However, the drawback is the exclusive online availability of Hey Nutrition's products, limiting accessibility. Additionally, express delivery is restricted to the UK and select European countries. Despite these constraints, Hey Nutrition's Magnesium supplement remains an excellent choice for those seeking a well-rounded and high-quality dietary supplement.
*Results are based on the TheoniaLiving Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.
Learn More3. Magnesium Citrate
Total Ranking
356 votes
8.6/10
B+
Overall GradePROS
- High-Potency, Highly Absorbable Formulation
- Gluten-, Dairy-, Soya-, Preservative-Free
- Vegan-Friendly, Naturally-Sourced Ingredients
- 100% Recyclable Amber Glass Bottle
CONS
- No Return Policy
- Uses Magnesium Citrate Alone
- Missing Zinc for Added Benefits
The Bottom Line
Solgar's Magnesium Citrate presents a high-potency and highly absorbable formulation, making it a standout choice for those seeking efficient magnesium supplementation. The product's commitment to being gluten-, dairy-, soya-, and preservative-free aligns with various dietary preferences, enhancing its appeal. Additionally, Solgar's dedication to sustainability is evident with the use of a 100% recyclable amber glass bottle, contributing to environmental consciousness.
However, the absence of a return policy poses a drawback for potential buyers, limiting the assurance of product satisfaction. While Magnesium Citrate is a commendable choice for absorption, the exclusive use of this form neglects the potential benefits of incorporating other magnesium types, such as Magnesium Glycinate or Magnesium Malate. Furthermore, the lack of added Zinc in the formulation means that users miss out on the combined advantages of these essential minerals.
*Results are based on the TheoniaLiving Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.
Learn More4. Calcium, Magnesium, Zinc & Vitamin D3
Total Ranking
412 votes
8.1/10
B-
Overall GradePROS
- Features Vitamin D3 & Zinc
- 3rd-Party Lab Tested & Vegetarian-friendly
- No Synthetic Fillers or Binders
- GMO-Free, Natural Ingredients
- 100% Money-Back Guarantee
CONS
- Uses Magnesium Oxide Alone
- Contains Calcium
The Bottom Line
Nutravita’s Magnesium, Zinc & Vitamin D3 supplement earns its reputation as a best-selling magnesium product with a blend of desirable features. The inclusion of Vitamin D3 and Zinc, along with being 3rd-party lab-tested and vegetarian-friendly, reflects the product's commitment to quality. Moreover, the absence of synthetic fillers or binders and the use of GMO-free, natural ingredients contribute to its appeal, backed by a confident 100% money-back guarantee.
However, potential buyers should be cautious about the reliance on Magnesium Oxide, known for its poor absorption, which may limit the overall effectiveness of the supplement. The presence of Calcium in the formula, competing for absorbency with Magnesium, further raises concerns about the product's potency. Despite its popularity, Nutravita's supplement may not fully meet the expectations of individuals seeking a highly effective magnesium product, considering these limitations in the formulation.
*Results are based on the TheoniaLiving Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.
Learn More5. Calcium, Magnesium, Zinc & Vitamin D Complex
Total Ranking
212 votes
7.7/10
C+
Overall GradePROS
- High-Strength, 100% Vegetarian Formula
- 6-Month Supply
- Free of Gluten, Dairy, & GMOs
- Features Vitamin D3 & Zinc
CONS
- No Return Policy
- Poor Bioavailability
- Contains Calcium
The Bottom Line
Nu U’s Calcium, Magnesium, Zinc, and Vitamin D supplement offers a high-strength and vegetarian-friendly formula with a convenient 6-month supply, catering to various dietary preferences and ensuring long-term availability. The product's commitment to being gluten-free, dairy-free, and GMO-free enhances its appeal to a broader audience, while the inclusion of Vitamin D3 and Zinc adds to its nutritional value.
However, potential buyers should be aware of the lack of a return policy, reducing the assurance of satisfaction with the product. The use of Magnesium Hydroxide in the formula, known for poor bioavailability, may limit the overall effectiveness of the magnesium content. Additionally, the presence of Calcium introduces a potential competition for absorbency, impacting the product's efficacy for those specifically seeking a potent magnesium supplement.
*Results are based on the TheoniaLiving Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.
Learn MoreFinal Thoughts
The Bottom Line
When it comes to choosing a magnesium supplement, you really do have to be careful. Far too many brands are simply selling cheap, poorly absorbed products for bargain basement prices which sadly will bring you very little health improvements.
After searching the internet to find the best available and evaluating them based on their customer service, ingredients and pricing and more, we believe Theonia's Magnesium Complex is the best supplement on the market.
Theonia provides a 100% satisfaction guarantee - or your money back.
Take advantage of this Offer while supplies last.
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