Weight loss method that is simple, economical and practical: weight loss by walking. There are hundreds of weight loss methods, but losing weight by walking is the most convenient and economical. Now let's start a 3-week slimming plan together. If you adhere to it everyday, after 3 weeks, your walking speed will reach 8 km/h and you will burn 410 calories per hour. Your attempt to lose weight will then be successful.