Twitter has turned into a modern platform for stars to fight back against accusations of extreme dieting.

Just like stick-thin LeAnn Rimes before her, super-slim E! host Guiliana Rancic is fighting back against critics who say she's overly-thin in photos of her gorging on pasta in Italy, tweeted by her husband.

Former Apprentice winner Bill Rancic posted the picture of his wife surrounded by huge plates of pasta with the caption, "Lunch in Trieste... 2people... 3 bowls of pasta!!"