Melissa Joan Hart reveals how she lost 42 pounds on the pages of the June 8 issue of PEOPLE.

Melissa was shamed into taking control of her weight after bloggers made her the big butt — pun intended -of public ridicule shortly after the birth of her second son 14 months ago.

“I still read blogs about me discussing how fat I’ve become,” she says. “Everyone still thinks I’m huge.”

“It was as hard for me as it would be for anyone else,” says the former star of Sabrina The Teenage Witch, who went from from 155 pounds to 113 with the help of a nutrionist and a personal trainer.

“I realized I didn’t have to be heavy just because I have kids.”