Marie Osmond says that her children were her inspiration to embark on a 50-lb. weight loss journey back in the mid-2000s. During a recent appearance on theDrew Barrymore Show, Osmond reflects on that difficult situation. She’d gained more weight than felt healthy to her, but after decades of struggling with extreme dieting and body dysmorphia as a young woman in the spotlight, she knew that she wanted to avoid a pattern of yo-yo dieting and self-starvation. “I was in a situation that I had to get out of,” Osmond remembers. “I had put 50 lbs on. That’s a lot of weight on me. I’m only 5’5. I’m v…