Information is scarce about dietary habits and nutritional status in adolescents in Ekpoma, Nigeria. This is partly because of this age group's reputation for capriciousness and also because health services/research in developing countries tend to focus more on preschool children and pregnant women. This study aimed to optimize the health needs of Nigerian adolescents by determining the dietary habits and the nutritional status of adolescents using anthropometry. The cross-sectional descriptive study engaged 400 adolescents aged 10-19 years in four secondary schools in Ekpoma using a semi-structured questionnaire for data collection. Height (m 2) and weight (kg) were measured and body mass index (BMI) was computed to assess underweight, normal weight, overweight or obesity. SPSS was used to analyse data. Important factors affecting dietary habits include parental influence (87%), taste of food (71%), mass media reports (61%) and culture (55%). Percentages of underweight, normal weight, overweight, and obese adolescents were 24%, 72%, 3% and 1%, respectively. There was significant association between BMI and monthly household income, p<0.002. There were no significant gender differences. In contrast to the rising prevalence of obesity worldwide, this study has demonstrated that under-nutrition is a challenge in this environment. Intensified nutritional education, provision of adequate healthy diets and motivational strategies are imperatives to prevent malnutrition and its related health consequences in this adolescent population-tomorrow's adults.