The yellow is from water-soluble B vitamins passing thru. It shows you took 
enough that your body has (for that moment) enough of them, and is spilling the 
excess through the kidneys. 

A better test for pill solubility is to use vinegar, and you don't need more 
than just enough to cover whatever pill you are testing. Room temp is fine, I 
think, although you could put a small bottle with vinegar and pill in a 100 
degree water bath, if you want. Should dissolve in about an hour, less is 
better, more is suspect, unless time-release formula.

Mark

From: faith gagne 


Supplements may make urine more yellow, but that has nothing to do with the 
good the supplements do as they pass through the body.  Faith G.

  From: KENNETH TUURI 


  Hi Faith.  I do realize a cup of water is different from hot stomach acid.  
But I was under the impression (and maybe wrongly so) that there is alot stuff 
out there in pill or tablet form that will not break down and go right through 
our bodies. I am open to correction and all thing possible.
    There seems to be a weath of knowledge on the list and at the moment I'm a 
sponge trying to soak it up.


  From: faith gagne 
  > Hi Ken.  A cup of water may be a bit different from hot 
  > stomach acid.> 
  > 
  >  >   From: KENNETH TUURI > 
  >   nu-life Ultimate One is in Canada not sure about the USA.
  >   One of the things I do with any vit. or supplement I take 
  > is to put one in a cup of water and see how long it takes to 
  > desolve. It may not be scientific but it gives me an idea if a 
  > product will break down easy.