Yes you can do that by some modification in your diet & excercise. I am talking about healthy diet not dieting. You can lose your weight upto 5 kg by following a good diet plan & excercise or a healthy diet with right ratio of calories, protein & carb. You have to avoid such type of unhealthy food like fried, oily foods, fast & junk food, tea, coffee, sugary products & sugary drinks. You should take a healthy breakfast. If you want to lose your weight please don't skip it because it will help you to boost your metabolism, includes salad with lunch & dinner. Use 6 small meal pattern instead of 3 major meal.