There are many different reasons why someone might be trying to gain weight. Many people for example may become underweight due to medical problems, such as hormonal problems or digestive diseases.

Still others have a very fast metabolism, and are naturally thin, to the point where they may feel uncomfortable about their weight.

You may be one of the few athletes out there that is looking to pack on more pounds to appear muscular. Regardless of your reasons, gaining weight requires that you pay careful attention to your diet to gain weight in a healthy manner.

The key to gaining weight healthily is taking in more Calories per day than you expend. The number of calories you burn during a day will depend on a number of factors.

If you are an athlete, you likely burn more calories than someone who leads a relatively sedentary existence. A physically demanding job might also result in greater caloric