Brandon, thanks for the comment. I do want to say that I agree with Jim's take on grass-fed whey, for the most part.
Research has shown that grass-fed meats are superior due to their *fatty acid profiles* and antioxidant profiles -- not necessarily the protein!
But with that 90% WPI, you're stripping out all the "beneficial" fat anyway! So what's the point of having paid for that higher quality milk if you're removing the biggest difference-makers anyway?
The amino acid profiles *might* be slightly different between say a 90% regular WPI and a 90% grass-fed WPI, but we can't imagine it being THAT much different to justify the cost.
A leucine molecule is going to be a leucine molecule after all...
Of course, if you're all for happy cows and more humane treatment of our cattle, then yes, grass-fed is a far more ethical purchasing decision. Whether it's worth it depends on your budget.
So we're with Jim on this one, although I forget what exactly he said back in that video a while back. I never meant to bring every last thing he's said into question, I just don't agree to this recent aggressive style of marketing.
Thanks again for reading!!