A practice being promoted on YouTube as a fad diet is actually a form of disordered eating that can pose serious health risks, health professionals are warning. In videos promoting "the cotton ball diet," young girls soak cotton balls in lemonade or orange juice and then swallow them. The girls claim that the cotton balls expand in the stomach, producing a feeling of fullness and thereby making them eat less during the day. In this, the cotton ball diet may seem at first to...

