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Top 7 Best Magnesium Supplements in Australia 2025

Top 7 Best Magnesium Supplements in Australia 2025

In the fast-paced world of modern living, many Australians are turning to supplements to bridge nutritional gaps in their diets. Among these, magnesium stands out as a powerhouse mineral essential for over 300 biochemical reactions in the body. If you're searching for the best magnesium supplements in Australia, you've come to the right place. This guide explores benefits, types, and top recommendations tailored for Aussie wellness enthusiasts.

Magnesium shortfalls are common—soil depletion, busy routines, and processed foods can reduce intake. Symptoms like fatigue, muscle cramps, and poor sleep may indicate low levels. Whether you’re active and recovering, managing stress, or simply aiming for steadier energy, the right magnesium can help. At Eco Traders, we specialise in natural, eco-friendly health products, and we’ll highlight our top picks to help you choose wisely.

This post covers science-backed benefits and expert-informed picks for the best magnesium supplements Australia 2025. Let’s dive in.

Quick take: For sleep and calm, try magnesium glycinate. For digestion and general use, magnesium citrate. For brain support, consider L-threonate. Always follow label directions and chat with your GP if you have kidney concerns or take medications.

Why magnesium matters: key benefits

Magnesium is often called the “relaxation mineral.” It supports muscle and nerve function, energy production, and bone health.

  • Improved sleep quality: Helps regulate neurotransmitters linked to relaxation and sleep.
  • Muscle recovery & cramp relief: Aids contraction/relaxation and post-exercise recovery.
  • Stress support: Helps calm the nervous system in high-stress periods.
  • Heart health: Contributes to normal rhythm and blood pressure regulation.
  • Blood sugar regulation: Supports insulin sensitivity.
  • Bone strength: Works with calcium and vitamin D for bone density.
Pull-quote: “Many Australians don’t meet daily magnesium needs—closing that gap can improve sleep, recovery, and everyday resilience.”

Understanding magnesium deficiency in Australia

Low intake can be linked to modern diets, stress, and some medicines. Common signs include fatigue, muscle spasms, loss of appetite, nausea, abnormal heart rhythms, tingling, mood changes, and—rarely—seizures. If these sound familiar, consult your healthcare professional. Adults typically require ~310–420 mg/day from food and supplements combined.

Who might benefit: Athletes, peri/post-menopausal women, people with high stress loads, those with low-veg diets, and anyone with recurring muscle cramps or sleep issues (medical guidance advised).

Types of magnesium & how they differ

Type Benefits Best for
Magnesium glycinate Highly bioavailable, gentle on the gut, calming Stress, sleep support
Magnesium citrate Well absorbed; mild laxative effect Constipation, general use
Magnesium oxide High elemental content; lower absorption Migraines, reflux (as directed)
Magnesium malate Energy support, fatigue Chronic fatigue patterns
Magnesium chloride Topical formats (oils/sprays) Local muscle tightness
Magnesium taurate Cardio-supportive pairing with taurine Heart and blood pressure support
Magnesium L-threonate Crosses blood-brain barrier Memory/brain support

Among Australians, magnesium glycinate and magnesium citrate are the most popular forms thanks to their strong absorption and gentle tolerance.

Choosing fast: Want calm sleep? Glycinate. Need regularity? Citrate. Focus/memory? L-threonate. Sensitive stomach? Start low and go slow.

How to choose the best magnesium supplement in Australia

  • Form & bioavailability: Chelated forms (e.g., glycinate, citrate) are well tolerated.
  • Dosage: Many adults aim for 200–400 mg elemental Mg/day, aligned with total diet.
  • Quality: Look for reputable brands and transparent labels.
  • Extras: Some include B6 or vitamin D—useful if they fit your goals.
  • Value: Compare cost per serve, not just bottle price.

Shop Magnesium Collection

Top 7 magnesium picks for 2025 (Eco Traders)

Product Form Key Benefits Badge
Switch Nutrition Mag-Gly 90 Caps Magnesium Glycinate Highly bioavailable, gentle on stomach, supports sleep & calm Best for Sleep
New Nordic Active Magnesium Citrate 750mg Magnesium Citrate + Vitamins Absorbs well, supports energy, reduces tiredness Best for Energy
Happy Way Magnesium Powder Tropical Powder Blend Hydration, post-workout recovery, stress relief Best Powder
Cabot Health Magnesium Complete Multi-form Tablet Reduces cramps, supports stress & headaches Best All-Rounder
Cabot Health Magnesium Ultra Potent Citrus Powder High-strength Powder 400mg elemental Mg, relieves spasms & supports sleep Strongest Dose
Blackmores Bio Magnesium 100 Tabs Tablet + Vitamins Trusted AU brand, muscle, heart & bone health Best Value
Herbs of Gold Magnesium Citrate 900 Magnesium Citrate (Vegan) Relieves cramps, supports stress & bone health Best Vegan

Tip: Prices and formulations can change—check each PDP for the latest nutritional panel and dosing instructions.

Dosage & safety

Common supplemental ranges are 200–400 mg elemental magnesium daily, taken with food. Split doses morning/evening if sensitive. Too much may cause loose stools (more likely with citrate/oxide). If you have kidney issues or take medicines (e.g., some antibiotics, PPIs, diuretics), seek personalised advice.

Safety checklist (speak with your GP/pharmacist):
  • Your current prescriptions and dose timing (avoid interactions; space antibiotics per label).
  • Any kidney concerns, pregnancy, or breastfeeding.
  • Your chosen product’s elemental magnesium per serve and intended daily total.
  • Agree on a review window (e.g., 8–12 weeks) and what outcomes you’ll monitor (sleep, cramps, stool tolerance).

FAQ

Which is the best brand of magnesium supplement?

There isn’t one “best” brand for everyone. Look for reputable Australian suppliers with transparent labels and third-party testing. Match the form to your goal: glycinate for sleep/stress, citrate for regularity/general use, powders for flexible dosing. Browse our curated options in the Magnesium collection.

What vitamin should not be taken with magnesium?

Most vitamins are fine with magnesium, including vitamin D. The bigger concern is timing with medicines (e.g., certain antibiotics or thyroid meds) and minerals like iron or zinc, which can compete for absorption. If in doubt, separate doses by a few hours and speak with your GP or pharmacist.

Why can’t you take vitamin D and magnesium together?

You generally can. Many people take vitamin D and magnesium together with food. The caution online often confuses medicine interactions with vitamins. If you have a medical condition or take prescribed drugs, confirm timing with your healthcare professional.

Is it better to take magnesium in the morning or at night?

Either is acceptable—consistency matters more. For sleep or relaxation goals, many Australians prefer evening magnesium glycinate. If using citrate for regularity, some take it earlier in the day. Start low, monitor how you feel for 1–2 weeks, and adjust timing.

Which form of magnesium do doctors recommend?

It depends on the need. Glycinate is often chosen for sleep/stress; citrate for general supplementation/regularity; L-threonate is explored for cognitive support; taurate may be considered for cardio support. Your GP can personalise advice, especially if you take medications or have kidney concerns.

What is the downside of magnesium glycinate?

It’s well tolerated but can be pricier than other forms and may feel too calming for some if taken in the morning. As with any supplement, start with a lower dose and see how you respond. Avoid exceeding label directions.

What are the symptoms of magnesium deficiency?

Possible signs include muscle cramps or twitches, low energy, sleep difficulty, irritability, headaches, and in more serious cases abnormal heart rhythm. These symptoms are non-specific—see your GP for assessment rather than self-diagnosing.

What is the best all-round magnesium to take?

For most people, magnesium glycinate (gentle, calming) or magnesium citrate (well-absorbed, practical) are solid starting points. Choose based on your goal and tolerance, and consider total daily intake from diet plus supplements.

What are signs of too much magnesium?

Excess from supplements may cause loose stools, nausea, or abdominal cramping—more common with citrate or oxide. Very high intakes can affect blood pressure or heart rhythm, particularly with kidney issues. Reduce dose and seek medical advice if symptoms occur.

What magnesium is best for leg cramps and restless legs?

People often try magnesium glycinate at night for cramps, while citrate may help if constipation co-exists. Evidence is mixed; hydration, electrolytes, and medical review for underlying causes are important. If symptoms persist, speak with your GP.

What magnesium should a woman take daily?

Adult women typically need ~310–320 mg/day from food plus supplements (higher in pregnancy/lactation—seek advice). Pick a form that fits your goal and stomach tolerance. Always follow product directions.

Are there foods and drinks naturally high in magnesium?

Yes—leafy greens, legumes, nuts, seeds, whole grains, cacao/dark chocolate, and some mineral waters contribute magnesium. Supplements are useful to close gaps when diet or tolerance is limited.

Conclusion: elevate your health with smart magnesium choices

Choosing the best magnesium supplements in Australia is less about chasing the “strongest” formula and more about matching the right form and dosage to your goals and tolerance.

Whether you’re searching for the best magnesium for sleep, a convenient magnesium tablet, or a high-absorption powder, Eco Traders offers trusted options.

If sleep and stress are front of mind, glycinate is a popular, gentle option. If you want broader, day-to-day support and regularity, citrate can be a practical starting point. Athletes or highly active Australians often prefer powder formats they can dose around training, while those focused on cognitive support may explore L-threonate. Whatever you choose, build from food first—leafy greens, nuts, seeds, legumes—and use supplements to close the gap. Start low, observe how you feel over 2–4 weeks, and adjust with guidance if needed, especially if you take medications or have kidney considerations. The upside can be meaningful: steadier energy, fewer cramps, better recovery, and calmer evenings. When you’re ready, explore our curated range below—each product is chosen for quality, clarity, and value—so you can feel confident you’re putting your health (and wallet) to good use.

Shop Magnesium Collection 

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About this article

Dr. Matt McDougall
Dr. Matt McDougall PhD
Founder, Eco Traders Australia

Hi, I’m Mathew — the founder of Eco Traders Australia. Based in Woy Woy, NSW, I created Eco Traders to share my belief in natural living, holistic health, and the healing power of food as medicine.