Jessica Simpson's Weight <br />Loss Secrets Revealed The singer went up to 240 lbs when <br />she was pregnant with her daughter, Birdie. She managed to get back to her pre-baby weight in six months thanks to some help from her trainer, Harley Pasternak. The star lost 100 lbs <br />by changing her diet. Harley Pasternak, <br />to 'Us Weekly' Harley Pasternak, <br />to 'Us Weekly' Pasternak also revealed that Simpson <br />follows the principles of his 2013 book, <br />'The Body Reset Diet.' She had three meals and two snacks a day with protein, fiber and healthy fat.
