hello, i can understand your concern. endura mass is a health supplement which professes to increase the weight of the individual in a short time. i would not advise you to start endura mass. the product would definitely help you increase your weight over a period of time but it might lead to hormonal imbalances, disturbance in liver function tests among others. instead i would suggest you to change your diet into a healthy balanced one. you can include egg whites daily in your diet which would help you get the proteins required for muscle building. soy products and meat are also rich sources of proteins. have a regular physical activity which would help boost up the metabolism and which in turn leads to increased appetite. hope you are satisfied with the response. thanks for choosing HCM