So short of the nutrition label, are the IP foods engineered differently from alternatives, hence the cost? My coach said something about the protein isotates (or something like that) being specialized for the diet.
I haven't found much of a difference. Some alternatives ARE exact IP products just in different packaging - there's a thread on it somewhere. I've seen some people post that they felt the program worked better with IP than alternatives, but my body seems to respond to them the same way.