I just picked up some magnesium and took the first pill last night. This morning I had my lowest BP reading so far: 112/71. I'm dubious of it taking effect that quickly - it's probably more likely that it's due to my daily exercise as I've been doing strength training every day. But it's still a good thing.
I read that it can cause stomach issues so I'm thinking of starting it off slowly, the bottle says to take 2 pills per day, I was thinking 1 pill for a few days and then increasing it.
For those of you taking the supplement - do you tolerate it well?