ICT's are tools that allow to keep the world informed, being a powerful instrument of interaction in human beings. In recent years, ICT's have had great influence in society creating types of behavior that influence the way people act or think, such as food advertising, the entertainment they provide and the ease of obtaining them. The inappropriate use of ICT's can cause incorrect eating behavior in adolescents and young people; for that reason this book allows to focus on the current reality of the excessive use of technologies such as: cell phone, tablet, t.v., computer and video game in order to raise awareness about this new phenomenon that has revolutionized the world to avoid that ICT's do not continue to influence eating behavior and therefore our health by influencing eating habits. In addition, a scale has been created to classify the level of influence of each adolescent based on the survey used for the study. The work should contribute to the awareness of adolescents and young people to improve their eating behaviors and reduce the use of ICTs.