Yes, I was able to lessen their frequency by staying hydrated.
But -- I haven't had heart palps in years. I quit taking calcium supplements and the problem was solved.
Then I taught myself to ignore the "OMG You're a WOMAN You're Going to Get OSTEOPOROSIS" media/mainstream medicine nonsense. Second problem solved ;-)
And now, icing on the cake, I realize I my fully iodinated endocrine system will regulate my body's calcium metabolism, which is all we need anyway, as the body is able to reuse calcium it moves out of our bones.