Adolescence is a transitional phase of development with the risk of adopting unhealthy behaviours, which is carried on to adulthood. Adolescent athletes tend to resort to unhealthy eating habits resulting in eating disorders and other clinical outcomes. Hence, it forms a crucial age to understand modifiable food habits and provide appropriate counselling. In India, coaches closely monitor the adolescent athletes, even concerning their eating habits due to the lack of multi-disciplinary support staff. Thus, our study aimed to understand the perceptions of coaches towards food, appetite and nutrition of adolescent athletes using In-depth interviews (IDI). Of all 14 coaches at the state-sponsored residential sports centre, 10 consented. The IDI were conducted in a standardized manner and were recorded and transcribed. They were coded manually, using the open and axial coding in the grounded theory approach to determine themes. They considered nutrition as key to performance and consumption of higher animal protein as important. Majority of them considered sprouts, dry fruits, fruits and vegetables as healthy foods, though were unable to define the quantities nor nutrients therein. Coaches considered protein as "important", while fat as "unhealthy". They also observed that athletes were avoiding fruits and vegetables, while consuming more rice. Meal timing, fluid and supplement intake were considered essential for international performance, albeit unaware of the specific requirements. Hygiene practices and peer isolation were considered to affect food intake. This lacunae in the nutrition knowledge and the modifiable nutrition practices explored can be targeted by developing a nutrition education and assessment tool for coaches and junior athletes. Further, a long-term engagement of a nutritionist with every sports academy in India is recommended.