> I was looking for a magnesium source that does not also have lots of
 > calcium.

 > Anyone know if this is a useful form of magnesium? The dose for use as
 > an antacid or laxative is much higher, 4 tablespoons full. A
 > teaspoon-full a day doesn't sound like a lot.

Those who have serious irregular heartbeat and are known to have magnesium
deficiency are using Waller Water. Recipe on request.
It seems that most forms of magnesium are not well aborbed, so milk of
magnesia is not considered to be a useful form.

William