"When Tom becomes a woman and has a baby and has postpartum, then he can become an expert," she told People magazine.
From anorexia to over-eating, Osmond has battled with body image from a young age. As a teenager on the "Donny & Marie" show, she was told to lose weight or lose her job.
"By the time I was 14, we did the pilot for the 'Donny & Marie' variety show, and I was down to about 110 pounds and feeling really thin," she told Oprah Winfrey in 2009. "Shortly after that, I was taken out into a parking lot by producers and told that if I didn't lose more weight, the show would be canceled. So I went from about 110 pounds to 93 pounds, which was absolutely stupid."