Blackmores Bio Magnesium is a high dose tablet to reduce muscle cramps, tension and stiffness when dietary intake is inadequate. The one-a-day formula also supports heart, bone and nervous system health.Blackmores Bio Magnesium is formulated with a combination of two forms of magnesium plus extra nutrients including vitamins B6, & D. Formulated to assist in the relief of muscular cramps and spasms when magnesium levels are low.It uses premium quality ingredients to deliver a high dose (301.5 mg) of magnesium plus co-factors to support absorption; all in one small, easy to swallow tablet a day.•Reduces muscle cramps, tension & stiffness when dietary intake is inadequate.•Supports bone health•Supports heart health•Supports muscle health•Supports muscle function•Supports nervous system health•Supports general health and wellbeing