Hilary Duff made an interesting confession in a recent episode of the "Informed Pregnancy" podcast. The actor shares she consumed her placenta in smoothies after giving birth to her second child. Business Insider reports there are claims that the practice has benefits like improving milk supply and preventing postpartum depression. However, a recent paper in the American Journal of Obstetrics and Gynecology concluded that eating the placenta is " potentially harmful with no documented benefit.