There is nothing special about an IP packet dispite the marketing claims. You can definately do it on your own. You could even look into an alternative program that in my opinion is much better. The IP diet is just one form on a PSMF. Another version I think is better is Lyle Mcdonalds Rapid Fat Loss.
"Getting solid information is easier than ever. Getting misinformation is even easier." - Kaplods
Maintaining for two years and I eat whatever I want - just not however much I want. Details here.