How can increase body mass or muscle.
For increasing mass or muscle it is not necessary to go to gym and do heavy exercises.
In the case of gain body mass it's all depends upon your diet or nutrition. Means how much you take protein, carbohydrates,carbs and etc.
Main is carbohydrates which helps in gaining mass which is very important to eat. Like in patatos , banana there is much amount of carbohydrates are present.
Take proper amount of all these things according to your body weight
