The Best Magnesium Supplement - Women’s Nutrition Expert
Expert's Choice
Pro Magnesium Complex by Swallow

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ADVERTISING DISCLAIMER: This website is funded by its audience. The content provided is neither a news article nor an independent review but is a sponsored comparison by theswallowco & vitabright. See advertising disclosure.

12 Min Read

Struggling With Sleep, Stress or Cramps? Magnesium Could Help

Magnesium is one of the most commonly taken supplements in the UK, and rightly so. A magnesium deficiency can be serious, and even people who eat a healthy diet can benefit from a magnesium boost.

Our in-house nutritionist Ariel Kaur Maan here at Women’s Nutrition Expert explains how magnesium can keep us healthy, how to recognise a good magnesium supplement, and reviews the top 5 magnesium supplements on the market.

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Better Sleep Muscle Function Heart Health Energy Production Mood & Hormones Calm & Relaxation Cognitive Health

So do magnesium supplements really work? And are they worth the investment?

The short answer is, yes. According to the NHS [4], men need 300mg a day and women need at least 270mg a day - although it’s safe to go up to 400mg a day. These levels of magnesium can be challenging to meet through diet alone, and many people do not achieve this level of magnesium intake. Taking supplemental magnesium can help you achieve the optimal intake and help you feel your best.

Magnesium-rich foods and supplements

Why do I need magnesium?

Many of us in Britain eat less magnesium than we should. In fact, almost 1 young adult in 5 eats less than the minimum requirement of magnesium, according to the UK government’s National Diet and Nutrition Survey. [1]

Top magnesium benefits

Relieve stress and anxiety

Magnesium partners with vitamins D3 and B6 to regulate neurotransmitters including serotonin and dopamine, which calm and lift our mood and combat depression.

Stronger muscles and bones

Magnesium transmits the nerve signals that make our muscles contract. Magnesium stimulates the activity of osteoblasts, the cells responsible for bone formation. It also helps us absorb calcium.

Regular, more refreshing sleep

Magnesium and vitamin D together make melatonin, which gets us off to sleep.

Avoid cramps

Magnesium makes our muscles relax after using them.

Better concentration

Our brains are essentially a giant ball of nerves, which is why we use magnesium every time we have an idea or remember a memory.

A healthier heart

Magnesium regulates our blood pressure, and also carries the signals that make our hearts beat, which is why a magnesium deficiency can cause fibrillation.

More energy

Magnesium drives the enzyme reactions that produce ATP, the “energy molecule” that powers everything we do.

Balanced blood sugar levels

Magnesium helps to regulate blood sugar levels and reduce the risk of insulin resistance and type 2 diabetes.

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All magnesium supplements are NOT created equal

Before you run off to the supermarket for some magnesium, there are some key things you need to know. Make the right choice so you don’t waste your money or, even worse, give yourself a tummy upset.

The Ultimate Magnesium Checklist

Choose
Chelated magnesium - It’s absorbed the best

Chelated magnesium means the magnesium is bound to an organic compound, typically an amino acid, which improves the absorption of magnesium. Magnesium oxide is not chelated, and therefore is not so well absorbed in the body. Research shows we can absorb up to 80% of magnesium in this form [5]. The best types of chelated magnesium are Magnesium Glycinate, Magnesium Malate, Magnesium Taurate and Magnesium Citrate. Magnesium orotate and lactate are also good.

Several forms of chelated magnesium - Not just one

We absorb magnesium through different uptake pathways [6], so look for supplements with several types of chelated magnesium rather than just one.

Zinc, Vitamin D & Vitamin B6 - They improve absorption of magnesium

They also work with magnesium in the body to deliver its many benefits. Good quality supplements add some or all of these nutrients.

Avoid
Magnesium Oxide - It’s a laxative

It’s the active ingredient in many osmotic laxatives, at high doses which work by drawing water into your intestine. Beware of ‘marine magnesium’, ‘hydroxide’ and ‘buffered’ on the label - these are mostly magnesium oxide. As the cheapest form of magnesium, it’s used in the lowest quality supplements. You’ll absorb 12% at best, making it a false economy that will have you running to the bathroom.

Unclear labels

If the label says something like “magnesium (from oxide, glycinate and malate)” you can bet that most of the magnesium is cheap magnesium oxide. Labels should say how much of each type of magnesium the supplement contains.

Magnesium stearate

This isn’t in magnesium supplements to boost your magnesium levels. It’s an additive to prevent ingredients from clumping while they’re being put into capsules or pressed into tablets.

SwallowVitabrightHey NutritionBeauty PieInessa
Types of chelated magnesium46322
NHS recommended dosageAboveBelowBelow
Added zinc
Added D3
Added B6
Vegan
Additives Free
Magnesium Oxide Free
Money-back guarantee6 months35 days60 days14 days14 days
Full reviewFull reviewFull reviewFull reviewFull review
Ranked number 1
Swallow Pro Magnesium 4 bottle

Pro Magnesium 4*

by Swallow

PROS

  • ✅ Easily absorbed with 4 types of chelated magnesium
  • ✅ Added zinc, vitamin D3 & B6 to increase absorption
  • ✅ NHS recommended dosage (300 mg)
  • ✅ No additives
  • ✅ Vegan

CONS

  • ❌ Not the cheapest option
  • ❌ Only available online
Our Expert’s Conclusion

This supplement has the best 4 types of “chelated” magnesium for the highest level of absorption - Magnesium Glycinate, Malate, Taurate and Citrate. With 300 mg of magnesium, it contains exactly the amount of magnesium recommended by the NHS.

You also get the best 3 types of zinc for maximum absorption at the full daily dose - Zinc Picolinate, Bisglycinate and Citrate. It comes with added vitamins D3 and B6 in their activated, high absorption forms: They’re proven to increase magnesium absorption even more. With no fillers or additives at all, this is also suitable for vegans and vegetarians with vitamin D3 sourced from algae.

This magnesium supplement is characterised by high value and quality at a reasonable price. The top-notch customer service, and 6-month money-back satisfaction guarantee, are a sign the brand cares about its customers and is confident in its own quality. For that reason, Swallow Pro Magnesium 4 easily takes our top spot.

Ranked number 2
VitaBright Magnesium Complex 6-in-1 bottle

Magnesium Complex 6-in-1*

by VitaBright

PROS

  • ✅ Easily absorbed with 6 types of chelated magnesium
  • ✅ Added zinc, Vitamin D3 and B6 for better absorption
  • ✅ No additives
  • ✅ Vegan

CONS

  • ❌ Only available online
  • ❌ Due to popularity, sometimes runs out of stock
Read Our Expert's Conclusion +
Ranked number 3
Hey Nutrition Magnesium Complex bottle

Magnesium Complex

by Hey Nutrition

PROS

  • ✅ Easily absorbed with 3 types of chelated magnesium
  • ✅ Added zinc and vitamin D3 to increase absorption

CONS

  • ❌ Below NHS recommended dose of magnesium (205 mg)
  • ❌ Contains some fillers
Read Our Expert's Conclusion +
Ranked number 4
Inessa Magnesium bottle

Magnesium

by Inessa

PROS

  • ✅ Includes magnesium threonate for brain benefits
  • ✅ Contains the NHS recommended dose (306mg)

CONS

  • ❌ Half the magnesium is low-absorption magnesium oxide
  • ❌ No added nutrients to support absorption
Read Our Expert's Conclusion +

Our Expert’s Choice

Our number 1 pick
Swallow Pro Magnesium 4

Pro Magnesium 4*

by Swallow
Five star rating
  • Made in the UK
  • Ideal dose of magnesium
  • Easy to absorb ‘chelated’ formula
  • Supporting nutrients to increase absorption
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References

  1. 1 - Micronutrient Intakes of British Adults Across Mid-Life: A Secondary Analysis of the UK National Diet and Nutrition Survey
  2. 2 - The multifaceted and widespread pathology of magnesium deficiency, Elsevier Medical Hypotheses Volume 56, Issue 2, February 2001, Pages 163-170
  3. 3 - Magnesium Deficiency. Etiology and Clinical Spectrum, Edmund B. Flink, Acta Medica Scandinavica
  4. 4 - Vitamins and Minerals (NHS)
  5. 5 - Magnesium Absorption in Humans, Torsten Bohn
  6. 6 - Intestinal Absorption and Factors Influencing Bioavailability of Magnesium - An Update, Philipp Schuchardt, Jan; Hahn, Andreas, Current Nutrition & Food Science, Volume 13, Number 4, 2017, pp. 260-278(19)

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