This topic has 2 voices and 1 reply. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts November 17, 2014 at 12:26 am #11850 lewkowicz613Member To reduce the insulin spike from the whey isolate would it be less of a spike if I used either whey concentrate or micellar casein instead? November 17, 2014 at 2:00 am #227600 Richard SchmittModerator No wouldn't matter, but the insulin spike is blunt by the fat. Stick to what the book suggests with using isolate. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.