Liza DeFazio, dietition to the stars and contributor on Fit Perez, dished about the latest celebrity diets and which Hollywood starlets are trying to trim down.
In the video, DeFazio talks about Jessica Simpson's struggle to lose weight as a girl who isn't a fan of the gym, and Ryan Seacrest's crash diets that may cath up with him in the long run.
Check out DeFazio's full video below to hear what else she has to say about the lastest celebrity diets.
Want more from Foodista? Sign up below!