The actress believes size issues are a personal choice, and says she supports Vidya Balan for flaunting her curves proudly and setting a new trend.
"I think she (Vidya Balan) is a fabulous actress. What's wrong with her? There is always a rule - it takes one to lead and rest to follow. The choice you have to make is whether you are a leader or a follower," Preity said here Wednesday at the launch of diet expert Pooja Makhija's book "Eat Delete".
"If there is one size zero and if 10 people want to become size zero, it's a different thing. If one is a size 12 or 10, and people want to be size 10, it's a different thing," she added.
"The Dirty Picture", one of 2011's biggest hits, saw Vidya flaunting her curves in the role of southern sex siren Silk.
"I think Vidya Balan is beautiful, she is gorgeous and she is a fabulous actor," added Preity.
About the hype being created around size zero, Preity said: "For normal people, it is very unfair to keep saying 'size zero is beautiful'. Being overweight is not good because it is bad for your health. (But) there is no such thing that this is the only size."
"I feel really bad for the normal people because their pressure is - 'If you eat this diet, you will look like her', which is really wrong, you can't look like anyone else," Preity added.
The actress has been away from the arc lights for a long while now and is set to stage a comeback with her debut production "Ishkq in Paris".
Mumbai Roundup: 9 incidents that took place this week
Photos: Ajay Devgn, Parineeti, Tabu at 'Golmaal Again' trailer launch
Photos: Dipika Pallikal Karthik oozes oomph in bikinis and sarees
Photos: Kareena Kapoor Khan's grand birthday bash
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing