ABSTRACT Introduction: Adolescents represent 16% of the world’s population and around 21% of the Indian population. A study was done to assess the double burden of malnutrition, the proportion of inadequate intake of some important macronutrients and micronutrients, and the impact of COVID-19 pandemic on nutrient intakes among adolescents. Methodology: Retrospective data analysis of the adolescents presented at the Adolescent Health Clinic at a teaching hospital (tertiary care level) in Andhra Pradesh, India, between September 2022 and December 2022 was done in the current study. Results: A total of 800 adolescents were studied with the mean age of the participants as 15.8 (±2.38) years of age. Among the participants, the majority (59%) were immunized with Td vaccination at 10 years and/or 16 years, 21% were not immunized, and the rest 20% did not remember the status. Only 17 participants had a history of COVID-19 infection in the past. The majority (62.75%) of the participants belong to normal nutrition status as per BMI for age WHO growth charts. There is a significant difference in the nutrition status between males and females belonging to overweight and obese subgroups. There is no significant difference in the intake with respect to past COVID-19 status. Almost all the participants take inadequate amounts of carbohydrates (calories), pyridoxine, folate, iron, calcium, vitamin D3, and retinol. Protein intake is inadequate in 63% of participants, and the deficient intake rises with the age with respect to both EAR and RDA guidelines. Conclusion: A large proportion of adolescents suffer from the double burden of malnutrition in South India, and almost all the adolescents do not get the recommended intake of most of the macro- and micronutrients in their diet following the lockdown and online schooling due to the COVID-19 pandemic.