I am following the IP concept, but using both IP and alternative products to increase my choices, lower my cost, and find alternatives that hopefully don't have as much of the things in IP that I don't think are healthy (soy, sugar alcohols, etc.).
I have read the Dr. Tran book 3 times now, have a very good understanding of ketogenic diets, and try to make the best choices for ME within the IP concept to keep me on plan long term.
But if that means I can't have an IP badge for my Girl Scout uniform, I'm ok with that.