Made Unique

Ethical Nutrients Mega Magnesium is no ordinary magnesium.

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Unique Magnesium

Not all magnesiums are created equal. Ethical Nutrients is formulated with an easily absorbed form of magnesium (magnesium diglycinate known as Meta Mag®). We meticulously craft our magnesium products, combining only with quality ingredients that have researched benefits. Ethical Nutrients Mega Magnesium is no ordinary magnesium – we're Australia's number 1 magnesium brand1.

Our Mega Magnesium Range

Available in
Turn down mental chatter:
Mega Magnesium Relax

Mega Magnesium Relax

Combines magnesium with lavender, a calming ingredient
  • Relieve mental overactivity
  • Switch off & unwind
60 Tablets
Keep your muscles healthy:
Mega Magnesium

Mega Magnesium

Made with high strength, easily absorbed magnesium for optimal muscles
  • Relieve muscle cramps
  • Support muscle function
60, 120 or 240 Tablets
Unwind & sleep well:
Mega Magnesium Night

Mega Magnesium Night

Combines magnesium with passionflower, a calming ingredient
  • Relax the mind & body
  • Reinforce healthy sleeping patterns
50 tablets
Charge your internal battery:
Mega Magnesium Energy

Mega Magnesium Energy

Made with B vitamins & rhodiola, energy-influencing ingredients
  • Reduce mental fatigue
  • Bolster energy levels
140g Tropical
Keep muscles strong as you age:
Mega Magnesium Muscle Plus

Mega Magnesium Muscle Plus

Includes vitamin D & HMB, researched for muscle mass declines
  • Support muscle strength
  • Enhance muscle mass^ ^In people over 50 years old
135g Tangerine

Frequently Asked Questions

What are the benefits of magnesium?

Magnesium is an essential mineral that's involved in more than 300 functions in the body. Magnesium has many research benefits including muscle cramp relief, muscle relaxation, sleep benefits, stress management and relief from migraines.

What is magnesium diglycinate?

Not all magnesium's are created equal. Magnesium diglycinate is one of the best forms of magnesium because it is easily absorbed. When compared to magnesium oxide, magnesium citrate & magnesium sulphate, magnesium diglycinate has fewer gastrointestinal side-effects (such as stomach upset & diarrhoea) due to its enhanced absorption.

Why take a magnesium supplement?

1 in 3 Australians don't get enough magnesium in their diet2. A magnesium supplement can be helpful if you need to support your muscles (relieve cramps or for exercise recovery), sleep or for stress relief.

What time of day should you take magnesium?

Magnesium can be taken at different times of day depending on the benefit you are looking for – morning may be more useful for stress relief and muscle recovery after exercise, while night might be more beneficial for sleep or muscle cramp relief.

Can magnesium help you sleep?

Magnesium has long-researched benefits for sleep. Magnesium also helps relax the body by alleviating muscle tension, which in turn can put you in a more relaxed state. This allows for a smoother transition to sleep and less disturbance by muscle cramps, mild spasms & discomfort.

What are the signs of magnesium deficiency?

1 in 3 Australians are magnesium deficient2 which shows up in many ways. The main symptoms people experience from magnesium deficiency are a lack of energy, poor sleep quality, PMT symptoms and muscle weakness, cramps & spasms.

Should I take magnesium tablets or powder?

Magnesium is offered in both powder & tablet form, neither of which impact the effectiveness of the magnesium. Some people find magnesium tablets more convenient, while others prefer to incorporate magnesium powder in their drinks (i.e. morning smoothie, warm 'tea' at night, etc).

Does magnesium help muscle cramps, including leg cramps?

Magnesium is proven to reduce & relieve muscle cramps, including leg cramps (even those suffered at night). It's important to look for a high quality, easily absorbed form of magnesium such as magnesium diglycinate for the most benefits.

Support Healthy Muscles

There are more than 600 muscles in our bodies, helping us do everything from walk and talk to sit and smile. Here are some ways you can support the muscles that keep you moving.


To keep muscles flexible, stretch regularly. This will help prevent tears & enhance your range of motion.


Feed your muscles with magnesium, vitamin D, calcium & protein. If your diet is lacking, consider quality supplements.


Regularly exercising benefits your whole body, especially by strengthening your muscles & building muscle mass.

The Ethical Nutrients Difference

We've been making high quality vitamin mineral supplements for more than 30 years in Australia. Our products are evidence-based & meticulously crafted to deliver real results. This means we are uncompromising in our quality, so you don't have to compromise when it comes to your health.

Evidence Based

We use only ingredients & combinations with researched benefits.

Meticulously Crafted

Our products are proudly formulated & made in Australia with care.*

Real Results

Our products deliver real results to millions of happy customers.

1 IQVIA™, Total Magnesium Pharmacy sales, MAT 2023/04/22

2 ABS Australian Health Survey: Usual Nutrients Intakes: 2011-12. Published 2015.

*More than 75% of Ethical Nutrients products are made in Australia

 Always read the label and follow the directions for use.

 Meta Mag® is a registered trademark of Balchem Corp.