The objective of this research is to find out the effect of yogic diet on physiological variable among obese collegiate male students. To achieve the purpose of this study, twenty obese collegiate students were selected from Rajarshi Chhatrapati Shahu College Kolhapur. Obesity of the subjects were determined through a person's body mass index measurement. For this study students with 30 kg/m2 and above of Body Mass Index is considered as obese. The subjects were randomly divided into two groups and each group contained ten subjects. One experimental group and other control group. Experimental group underwent yogic diet; control group did not part any activity. The investigator got individual consent from each subject. The yogic diet on selected physiological variable. Pre tests were conducted for all the subjects on physiological variable such as Vital capacity. The experimental groups yogic diet for a period of twelve weeks. The post tests were conducted on the above said dependent variables after a period of twelve weeks in the respective treatments. The difference between the initial and final means on data was considered as the effect of respective treatments. To find out the statistical significance t-test was employed. In all cases 0.05 level was fixed to test the significance. It was concluded that yogic diet program significantly improved physiological variable such as Vital capacity among obese collegiate students.