Objective: To determine the effects of Short -Term (4 week) Lifestyle Intervention Program on the anthropometric measurements, body fat percentage, blood sugar, blood pressure, nutrition and physical activity behaviour of health workers at-risk for Type 2 Diabetes Mellitus. Methods: The respondents were 31 female health workers. A randomized, pre and post assessments for anthropometric measurements, body fat percentage, blood pressure and fasting blood sugar were tabulated and compared. The baseline and post intervention food intake and physical activity have been calculated and compared using mean changes. The qualified respondents had participated in once a week for 4 weeks of live lectures on nutritional management and group exercise. Results: There were no significant mean weight and BMI reductions in all respondents. The following measurements were observed to have significant reduction; waist circumference with a mean of 2.7 cm (p- value **.0001), waist to hips with a mean of .03 cm (p-value **.0002), total body fat percentage mean of 1% (p-value *.0185), FBS from the pre -diabetes group with a mean of 11 mg/dL with a p-value of *.0002, from the diabetes group with a mean of 60 mg/dL with p value of *.0084, DBP of about 4 mm Hg from the pre hypertension group with a p-value of *0.0379 and they had a significant reduction of 12 mmHg with a p-value of **0.0004. Using ANOVA, there was a significant energy and fats reduction intake, both with p value of *.001. There was an increase in their physical activity with a p-value of *.001 Conclusion: The mean average results for the waist circumference, waist - to hip ratio and body fat percentage, fasting blood sugar and diastolic blood pressure has significant changes. Also, there were significant mean reduction in calories and fats intake and increase in physical activity.