Boobo - have never heard of the 'ideal protein diet' - is it one of those mail order food replacement diets? I have been doing the Wonder Slim products for the last 2 weeks, and really like this one. You can go to the Wonderslim posts for more info. from alot of us on this one. Is similar to Medifast, but more reasonable in cost and alot of those who have done both seem to prefer the foods and shakes better.