Adolescent nutrition plays a crucial role in physical growth, cognitive development, and long-term health outcomes, particularly among socioeconomically marginalized populations. The present study examines dietary habits and their impact on the nutritional status of Scheduled Caste (SC) students studying in government higher secondary schools of Malda district, West Bengal. A mixed-methods research design was adopted using both primary and secondary data sources. Primary data were collected from 150 SC students through anthropometric measurements and a structured food-frequency questionnaire to assess meal frequency, breakfast consumption, dietary diversity, and junk food intake. Anthropometric indicators such as BMI-for-age, height-for-age, and weight-for-age were used to evaluate nutritional status. Descriptive statistics and Pearson correlation analysis were applied to examine the relationship between dietary habits and nutritional outcomes. The findings reveal irregular dietary patterns among many students, with 35% consuming two or fewer meals per day and 44% frequently skipping breakfast. Dietary diversity was limited, as 54% of the students fall under the low dietary diversity category, while 41% frequently consume junk or processed foods. Anthropometric assessment indicates a considerable burden of undernutrition, with 34% of students classified as thin, 39% stunted, and 42% underweight, while 31% show clinical signs of micronutrient deficiency. A positive association was observed between dietary diversity and BMI-for-age (r = 0.42), suggesting that diversified diets contribute to better nutritional outcomes. The study highlights the need for improved nutrition education, enhanced dietary diversity, and strengthened nutrition-sensitive interventions to promote better health among marginalized adolescents in Malda district.