Wally Day wrote:

>> Also, it is not a byproduct of the cheese
>
> How does one get whey without cheese? I thought whey was just a
> by-product from cheese making.

I guess their point is that cheese makers are after the casein curd, 
and the whey is left over, a byproduct, and they don't care what 
condition it's in. It gets damaged by high heat or pH. With this 
particular whey product, their focus is on extracting the whey 
proteins and other biological factors with all of their special 
properties intact. The casein is the byproduct in this case. You can 
read about it here: http://www.wellwisdom.com/a_immunoprorx.php

You can also read in many places that whey protein has the highest 
biological value of any protein--higher than egg white (the gold 
standard). Which means it's the most fully and quickly utilized 
protein, which is why so many body builders use it for post-workout.

Of course, it's not paleo, being dairy-based and a product of 
technology.