Background: The time of sprout growth known as adolescence is one in which the need for greater energy is present, and eating habits have a significant influence in the overall maintenance of one's health. In this study, we are going to investigate the relationship between eating habits and BMI. The goal of this study is to determine the extent to which adolescent eating habits influence body mass index. For the purpose of this study, an evaluative research approach was utilised. A research design consisting merely of a onegroup posttest was used. The research was carried out at Adarsh Junior College in Malkapur, which is located in Karad. In order to pick 121 students from the 11th and 12th grades, a technique called non-probability purposive sampling was utilised. After laying out the goals of the research project and answering each participant's questions, we obtained their informed consent. The data were gathered through the use of a standardised questionnaire. After that, the data were tabulated, and computations were carried out making use of both descriptive and inferential statistics. The findings showed that the majority of teenagers, 56.19%, have healthy eating habits, with 34.71% having normal BMI, 18.18% falling into the underweight category and 3.3% falling into the overweight category. While 13.22% and 2.47% of the population, respectively, are either underweight or overweight, 43.81% of the population has poor eating habits or among those people, 28.09% have normal body mass index. According to the findings of the study, there is not a significant relationship between BMI and eating Habits. According to the findings, the effects of both groups on the BMI level of adolescents are practically identical.