Eating disorders are classified as disorders whose basic characteristics are pathological eating habits and behaviors. Due to excessive worry and focus on controlling the shape and weight of the body, the person's resort to improper, irregular or chaotic food intake resulting in health problems of physical and psychological in nature. Numerous studies are conducted to investigate factors influencing eating and weight-related problems, given the alarming prevalence of such behaviours among adolescents. Peers are important component of adolescents’ social context and represent a powerful influence on body-related behaviours. Body dissatisfaction has been confirmed as one of the most significant factors in the development and maintenance of subclinical and clinical eating pathology. While the majority of females desired thinner physique, males often express their body dissatisfaction in terms of muscle tone and size. The relationship between shame, especially body shame, and eating pathology has received increased attention in recent years. The aim of this research was to determine the incidence of disordered eating behaviors in non clinical population of high school students in Zagreb, Croatia, and to examine the extent to which peer pressure, body shame and body dissatisfaction contribute to the development of disordered eating habits. The study included 400 male and female high school students. Demographic data were collected with structured questionnaire, whereas data on self-reported eating habits, peer pressure, body shame, body satisfaction and body mass index (BMI) were collected with Eating Attitudes Test (EAT-26), Peer Pressure Questionnaire, Body Shape Satisfaction Scale (BSSS), Drive for Muscularity Scale (DMS), and Body Shame Scale (BS-OBCS). Body Mass Index (BMI) number was plotted on the BMI-for-age growth charts to obtain a percentile ranking that indicated the relative position of the adolescent's BMI number among peers of the same sex and age. Of the total sample, girls made up 46.8% (N = 187; average age M = 16.10; SD = 0.945) and boys made up 53.3% (N = 213; average age M = 15.83; SD = 1.064). Majority of adolescents had normal BMI for age. The results indicated that the most predictive factors in explanation of disordered eating habits among girls were body shame and body dissatisfaction, while among boys the most predictive factors of disordered eating habits were body shame and drive for muscularity. This study provides further evidence of the experience of body dissatisfaction, body shame and drive for muscularity among adolescents and suggests that these factors are associated with disordered eating behaviours. Future longitudinal research designed to specifically explore aforementioned risk factors is needed, and would enhance our understanding of eating disorder aetiology.