With the world being obsessed with obesity; where does that leave the polar opposite? Malnutrition should be equally important. In this video from the Youth Health Alliance, the concerns of the under weight person are addressed. After watching, you'll have a basic understanding of what is required to gain weight in a healthy way. It addresses the consequences of being underweight. It also describes both diet and exercise for healthy weight gain. It explains which calories are healthy to consume and in what portions. It also differentiates among exercise used for losing and gaining weight.