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  • Regular price $18.95


Blackmores Bio Magnesium conveniently supports normal muscle function and may help prevent muscle cramps and spasms, in a high strength one-a-day dose.

Why use

  • May assist in the prevention of muscular cramps and spasms
  • Great for people who exercise regularly


The Blackmores difference

Blackmores Bio Magnesium is formulated with a combination of two forms of magnesium plus extra nutrients including vitamins B, & D. Formulated to assist in the prevention of muscular cramps and spasms.

It uses premium quality ingredients to deliver a high dose (300 mg) of magnesium plus co-factors to support increased absorption; all in one small, easy to swallow tablet a day.

Active ingredients per tablet

Magnesium oxide-heavy

(magnesium 265 mg)

440 mg


Magnesium phosphate

(magnesium 36 mg)

175 mg



Calcium ascorbate dihydrate
(ascorbic acid, vitamin C 38.4 mg)

50 mg



(vitamin D3 100 IU)

2.5 µg


Adults and children over 9 years - Take 1 tablet a day with a meal, or as professionally prescribed

Contraindications and cautions

  • WARNING - This product contains Pyridoxine hydrochloride which may be dangerous when used in large amounts or for a long time
  • Pyridoxine-induced peripheral neuropathy is most commonly reported with doses of 1 g or more daily, taken for 2 months to 3 years
  • If symptoms persist, see your healthcare professional
  • Vitamins and minerals can only be of assistance if dietary intake is inadequate