Jen,

Sorry for long delay. I've been away on a quickie vacaton.

Just made some more muffins tonight and hmmmmm....

I've used both the soy and whey. Doesn't seem to matter. The original recipe called for a protein powder with as little carb and lots of protein. Not sure if I mentioned it, but I also add in some flax seeds for extra punch and crunch!

I'm also looking for a low carb protein drink. Any suggestions out there?

Carrot