What do Oprah Winfrey, Janet Jackson, Jessica Simpson and Kristie Alley all have in common? They're master yo-yoers! Well, when it comes to their weight at least!
Check out their "skills"!
FYI: Yo-Yo Dieting is NOT healthy! According to a study by Brownell et al. in the journal "Physiology & Behavior" repeated weight cycling increases the amount of fat gained per calorie eaten. (source: http://www.livestrong.com/article/442...)