Magnesium

(125 products)

Magnesium

Magnesium is key for maintaining your everyday health and well-being. At HealthPost youll find a comprehensive range of magnesium supplements designed to support your body's needs. Whether you want to support calmness, deep sleep, muscle comfort or happy mood, youll find a bestselling naturopath-checked range, backed by ethical values.

Magnesium Citrate
Magnesium Glycinate
Magnesium Oxide
Magnesium Threonate
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Magnesium Oil & Cream
Liposomal Magnesium
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Sleep Support
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Muscle Support
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Stress & Hormones
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  • Mindful Brand
    Swisse Ultiboost Magnesium Gummies _1
    Swisse Ultiboost Magnesium Gummies _2

    Ultiboost Magnesium Gummies

    $28.60

    Swisse

    Ultiboost Magnesium Gummies

    60 gummies
    $28.60
  • Mindful Brand
    Ethical Nutrients Mega Magnesium 50+ Support _1
    Sale
    BONUS

    Mega Magnesium 50+ Support

    $51.40 $45.40

    Ethical Nutrients

    Mega Magnesium 50+ Support

    139gm
    $45.40 $51.40
  • Mindful Brand
    Ethical Nutrients Mega Magnesium Women’s Balance _1
    Ethical Nutrients Mega Magnesium Women’s Balance _2
    Sale
    BONUS

    Mega Magnesium Women’s Balance

    $28.70 $24.70

    Ethical Nutrients

    Mega Magnesium Women’s Balance

    30 tablets
    $24.70 $28.70
  • Mindful Brand
    Swisse Ultiboost Magnesium + Sleep Powder _1
    Swisse Ultiboost Magnesium + Sleep Powder _2

    Ultiboost Magnesium + Sleep Powder

    $40.90

    Swisse

    Ultiboost Magnesium + Sleep Powder

    180gm
    $40.90
  • Ora Mag3 Mood _1
    Ora Mag3 Mood _2

    Mag³ Mood

    $69.20

    Ora

    Mag³ Mood

    150g
    $69.20
  • SUP Elite Magnesium Post-Workout Gummies _1
    Sale
    BONUS
    NEW

    Elite Magnesium Post-Workout Gummies

    $26.90 $24.30

    SUP

    Elite Magnesium Post-Workout Gummies

    45 gummies
    $24.30 $26.90
  • Healtheries Ashwagandha + Magnesium supplement jar on a white background.
    Back view of a supplement jar with green lid and white label on a white background.
    Sale
    BONUS
    NEW

    Ashwagandha + Magnesium High Strength

    $23.30 $22.30

    Healtheries

    Ashwagandha + Magnesium High Strength

    60 capsules
    $22.30 $23.30
  • Mindful Brand
    Jeuneora Hormone Hero _1
    Jeuneora Hormone Hero _2

    Hormone Hero

    $86.40

    Jeuneora

    Hormone Hero

    120 capsules
    $86.40
  • Bottle of Sleep Drops Magnesium Supersleep supplement on a white background
    Sleep Drops Magnesium Supersleep supplement packaging on a white background
    COMING SOON

    Magnesium Super Sleep

    $39.50

    SleepDrops

    Magnesium Super Sleep

    60 capsules
    $39.50
  • Ora Mag3 Complete _1
    Ora Mag3 Complete _2
    NEW

    Mag³ Complete

    $53.50

    Ora

    Mag³ Complete

    120 Capsules
    $53.50

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A person holding a bottle of magnesium supplements

Best of 2025: 9 trending bestsellers loved by HealthPost customers

12 Dec 2025•Rebecca Baylis

Why Magnesium Matters 

Magnesium is a vital mineral that plays a crucial role in over 350 enzymes in the body. It’s involved in various essential functions, like: 

  • Healthy energy production 

  • A calm nervous system 

  • Supporting a healthy heart 

  • Getting to sleep and staying asleep 

While your body doesn’t produce magnesium naturally, you can obtain it through your diet. It's worth noting that over half of the magnesium in your body is found in bone tissue, emphasizing its significance in maintaining strong and healthy bones.

Benefits of Magnesium 

  • Calmness: During times of stress, magnesium can help support nervous tension, for a sense of calm and relaxation. 

  • Heart Health: Maintaining a healthy heart and blood pressure is crucial, especially as you enter your wise years, and magnesium plays a vital role in supporting cardiovascular health. 

  • Relaxed Muscles: Magnesium supports comfortable muscles, helping to support muscle tension and relaxation. 

  • Brain and Nerves: Healthy brain and nerve function are essential for optimal cognitive performance, and you need magnesium for proper function. 

  • Deep Restful Sleep: If you struggle with sleep issues, magnesium can support restful sleep patterns, allowing you to wake up refreshed and rejuvenated. 

  • Strong Bones: Alongside other important minerals, magnesium contributes to maintaining strong and healthy bones, for healthy bone density, especially as you age. 

Should I Consider Magnesium Supplementation? 

While magnesium can be obtained from high magnesium foods such as Brazil nuts, green leafy vegetables, and lentils, certain factors can deplete magnesium levels in the body. High consumption of refined sugar and processed grains, as well as stress, caffeine, alcohol, and some types of medication can all contribute to magnesium deficiency. So, if you feel that your diet and lifestyle may not provide sufficient magnesium, supplementation can help fill any nutritional gaps. 

Different Types of Magnesium Supplements 

At HealthPost, you’ll find a wide selection of magnesium supplements available in tablet, capsule, powder and liquid form to suit any preference. For superior absorption, you may consider our BioBalance Liposomal Magnesium, known for its enhanced bioavailability. You’ll also find magnesium creams and oils that can be applied topically to support relaxation and comfort. 

Magnesium Side Effects and Considerations 

When taken as recommended, magnesium supplements are generally suitable for most individuals. However, if you have sensitive digestion, in high doses, certain forms of magnesium can lead to loose bowels. If you have a sensitive stomach, opting for a liposomal magnesium supplement can be a gentle and effective choice. 

How to choose the right magnesium

With so many options for magnesium supplements – sometimes the trickiest part can be choosing the right one for you. If you’re looking for help choosing, check out The best magnesium for your health goals.