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Sanderson Magnesium FX 1000


  • 60 tablets

    RRP: AU$27.60

    Save 43% (AU$11.80)

  • 120 tablets

    RRP: AU$42.20

    Save 47% (AU$19.90)

Magnesium Organic Ultra-Absorption FX 1000 is a high absorption complex of organic magnesium salts and does not contain inorganic magnesium oxide or phosphate, which have poor bioavailability. Magnesium FX 1000 has been formulated to include magnesium citrate, magnesium aspartate, magnesium orotate and magnesium amino acid chelate. Research has shown these organic forms are much better absorbed and are better utilised than inorganic forms. This formulation also contains vitamin B6, vitamin D and selenium as cofactors involved in the optimal absorption and utilisation of magnesium.

It is well known that some forms of minerals or other substances can be absorbed better by the body than others. The most commonly used form of magnesium in supplements is inorganic magnesium oxide (MgO), because it is cheap and because it has a high (up to 60%) elemental magnesium content. HOWEVER, the availability of the magnesium in MgO has been assessed at only around 4-5%. So a tablet boasting 500mg MgO is actually only likely to provide around 15mg magnesium. Compare this is with the availability of Magnesium Aspartate at around 42%, Magnesium Citrate at 25%, Magnesium Amino Acid Chelate at 25% or Magnesium Orotate at 20% for example. Organic forms of Magnesium are better tolerated and better absorbed by the body.

Magnesium Organic Ultra-Absorption FX 1000 may be useful to support healthy heart function; muscle relaxation; sleep and relaxation; nervous system balance; PMS associated with cramps and changes in mood; anxiety, mood & irritability.



Take 1-2 tablets, or as prescribed by a healthcare professional. As magnesium may promote restful sleep it is suggested that tablets are taken in the evening.


Taking too much magnesium may lead to diarrhoea. More serious problems can develop with excessive magnesium intake from magnesium-containing laxatives. However the amounts of magnesium found in nutritional supplements are unlikely to cause such problems.

People with kidney disease should not take magnesium supplements without consulting a doctor. 

Magnesium has a range of beneficial and adverse interactions with various medications so if you are taking a medication you should check with your health professional before taking it. 

This product contains selenium which is toxic in high doses.  A daily dose of 150 micrograms for adults of selenium from dietary supplements should not be exceeded. 


Magnesium Citrate (providing 70mg elemental magnesium)  483mg
Magnesium Amino Acid Chelate (providing 80mg elemental magnesium)  400mg
Magnesium Orotate (providing 5mg elemental magnesium)  78mg
Magnesium Aspartate (providing 5mg elemental magnesium)  69mg
(Total elemental magnesium 160mg)
Pyridoxine Hydrochloride  5mg
Selenium (as Selenomethionine)  30mcg
Vitamin D3 150iu

Superior Low Allergy Formulation:

Free from added sugars, yeast, starches, gluten, wheat, corn or other cereals, dairy products, colouring, preservatives, or artificial flavours.


Each Sanderson product bears the signature of Warren Sanderson, one of the original founders, and represents an assurance of quality. Their range includes: probiotics, multivitamins and homeopathic sleep supplements. They also have a range for children that includes the Smarty Fish – One-a-day, rich in omega-3 and colostrum, which may help with brain and physical development.

Superior Organic Iron is another highly reviewed product and helps with increasing deficient iron levels, which may help improve stamina levels and mental activity.

You may like to see more of our leading brands here.

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Other Countries Phone: +64 3 265 9758

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Customer Reviews

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Items 1 to 10 of 63 total

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Great product that really works Review by
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A great combination of magnesium, Vitamin D3 and selenium. All helpful especially for an older person.
Use this product every day.

Amazing product Review by
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Have been using these for a while now I really notice the difference when I run out I have restless sleeps and back pain again

Best I've tried Review by
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I would encourage anyone needing a more restful sleep to read the Overview of this product carefully as it seems many other forms of magnesium simply don't work well - as I found to my cost - literally :-) This one is absolutely brilliant however, so I'm sticking to it.

VERY happy Review by
  • star

Great price and great product. As are all Sanderson products in my opinion. Helps me get ready for sleep and to sleep soundly.

Ectopic control. Review by
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As a long term cardiac patient, I consider that regular Magnesium supplent assists in the control of ectopics and works well as an adjunct to my AF treatment.

Magnesium FX1000 Review by
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Just started these new Magnesium Tablets.

Magnesium Review by
  • star

Have used this product for some time and now and find it really helpful,

good form of magnesium Review by
  • star

its a good blend of different bio available magnesium. A good product

Fantastic Review by
  • star

Recommend for Fibro and Parkinsons to aid a deeper sleep for longer! Helps to rest the sore muscles to.

excellent product Review by
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this is an excellent product, tablets are easy to swallow and work well

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Product Highlights


  • healthy heart function
  • muscle relaxation
  • sleep and relaxation
  • nervous system balance
  • PMS associated with cramps and changes in mood
  • anxiety, mood & irritability.


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    If you have changed your mind about a product and it is in re-saleable condition (unopened, with undamaged packaging) you can return it within 30 days of receipt for a full refund.

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