> Unless one supplements or
> takes in dairy, I just do not believe that one can get this much
absorbable
> calcium from plants.

Don't overlook hard drinking water as a good source of calcium and
magnesium:

" More than 50 studies in nine countries have been carried out on possible
relationship of water hardness and health. Most of the investigations were
in the United Kingdom, United States, and Canada; they reveal a consistent
trend of significant statistical associations between the hardness
characteristics of drinking water and the incidence of cardiovascular
problems (heart disease, hypertension, and stroke) and, to a lesser extent,
other diseases. Generally, reports have shown an inverse correlation between
the incidence of cardiovascular disease and the amount of hardness of
drinking water, or, conversely, a positive correlation with the degree of
softness. Studies in the United States and Canada have shown that
age-adjusted cardiovascular mortality rates among populations using very
soft water may be as much as 15-20% higher than among populations using hard
water. The differential reported for the United Kingdom may be as high as
40%."
www.mgwater.com/exhibitb.shtml

Rob