23. Hilary Duff
Hillary Duff has, over the years, had a lot on her plate being both a single mother and an active Hollywood star. We mean this both figuratively and literally, as the latter led to her weight gain. That said, most of her weight gain came from her pregnancy with baby Luca. After giving birth, she did her best to stay active and managed to lose 10 pounds over a very short period of time. Today, Hillary Duff undoubtedly looks better and finer than ever.
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