To ensure that weight loss is achieved healthily, it is suggested that one should not lose “more than 0.5 to 1kg per week or 10% of your body weight over 6 months”. In order to lose 1kg, a 7,700 calorie is needed.
Weight loss occurs when the body undergoes a calorie deficit. The food you eat contains calories (kcal) which are forms of energy needed by the body to function normally. A calorie deficit happens when your body burns more calories than you consume. When this happens, your body is forced to burn body fat stored in your belly, waist, or thighs to make up for the deficit. As a result, weight loss occurs.