After months of migrains, a sweet tooth I couldn't shake, and stabbing chest pains with muscle tension all over my body is did some research and found these are pretty common symptoms of magnesium deficiency! Paired with potassium for proper absorption, this supplement is doing WONDERS for me! No migraine in 2 weeks, and the stabbing pains in my chest are lessoning. Also an added bonus from magnesium: better sleep! I'm still working up to the full dosage as you have adapt your body or... well you will spend all your time in the bathroom. So far LOVING this and love that this brand has one of the purest forms!