Thanks to all who have responded to my query as to the in vivo efficacy of 
silver ions or particles. In particular, Stephen Quinto's comment "No one we 
know of has done the research necessary to establish in-vivo efficacy of any 
silver product ....let alone comparatives between them", makes it clear much 
more work needs to be done before any of us will really know what works best. 
Thanks for the honesty there, Steve, and for letting us in on actual tests of 
the Silver 100 product. Surprised that the pH was acidic - apparently the 
potassium levels are very low - or some other secret ingredient is "thrown in"!

Interesting too what "Ole Bob" had to say about HVAC with and without CO2 
blanket. The clear implication is that without it (CO2) one runs a strong 
chance of brewing a significant fraction of silver as silver nitrate solution - 
generally considered it seems as a pretty undesireable form of silver.

Getting back to the issue of complexing. I remember reading about and trying a 
simple and fairly dramatic illustration of complexing. Boracic acid dissolved 
in water is a quite weak acid. After adding some common table sugar - which 
complexes with the borate ions to form a new species - the acidity rises 
dramatically, indicating a greatly increased ionic solubility for the complexed 
borate ion. Presumably citrate among others can likewise radically increase the 
complexed silver ion solublity over that of the uncomplexed Ag+ .

The practical question is, does that translate into a more effective product 
for internal use by humans? As I cannot imagine a consensus on that or similar 
matters, it seems one has to either try out everything in the hope of making an 
accurate appraisal, or just settle with something that "works" personally.

                                    regards, Kevin Nolan