>
>And I'll give prizes to anyone who can tell me what the type of calcium in
>dairy is, how it differs from any other type of 
>calcium, how it physiologically
>works to numb the nerves in the bladder, and then cite any study from a
>peer-reviewed medical journal that backs this up.
>
>Steve Carper

From my understanding of a brief scan of 
literature today, there are a few Calcium sources 
in dairy, one being a calcium trapped in a casein 
micelle, also Whey can bind calcium. The calcium 
is bound and must be released to be bioavailable. 
Proteins and peptides can influence (decrease?) 
availability. A snip from a long Review:
Cow's milk contains an average of 1.20 g calcium 
per liter, 20% of which is bound to casein as an 
insoluble organic colloid and the remaining 80% 
in mineral form (45% in the tricalcium phosphate 
of the phospho-caseinate, which is also insoluble 
and colloidal, and 35% soluble, including 12% as 
ionized calcium) (full text : 
http://www.jacn.org/cgi/content/full/19/suppl_2/119S) 
Journal of the American College of Nutrition, 
Vol. 19, No. 90002, 119S-136S (2000)
The Bioavailability of Dietary Calcium
Léon Guéguen, MsScAgr and Alain Pointillart, DVM, PhD


As for enuresis and Calcium excretion, see:
Valenti,-G.; Laera,-A.; Gouraud,-S.; Pace,-G.; 
Aceto,-G.; Penza,-R.; Selvaggi,-F.P.; Svelto,-M. 
Low-calcium diet in hypercalciuric enuretic 
children restores AQP2 excretion and improves 
clinical symptoms. Am-j-physiol.  Nov 2002. v. 
283 (5,pt.2) p. F895-F903.
http://ajprenal.physiology.org/cgi/reprint/283/5/F895?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&searchid=1138132342620_1541&FIRSTINDEX=0&sortspec=relevance&volume=283&firstpage=895

Happy Reading!