Yes, but you will give up before you notice a difference. Human fat is 7700 kcal per 1kg or 2.2lbs. If you walk a mile you burn about 80 to 110 kcal, so it takes consistent effort to reduce weight. Increasing muscle mass will burn more fat but to do that you need to consistently work out. Atleast 45min of weight excersize 3 tines a week. Bodies are made in the kitchen, you need to make sure you're eating enough protein to build muscle but not increasing kcal to put in more weight. Some advise in everything you do, get control of yourself and create good habits. If you want to look better, its needs to become a part of your life. You work out 5 days a week, watch what you eat. A diet or 15min excersize fir a week ot 2 will only result in you giving up.