If you are focused on gaining muscle mass, you may think that the only thing you need to be worried about is working out to help your muscles grow. That's not true. The only way you are going to gain muscle is by eating right.
Protein
First things first, if you want muscle mass, you have to give your body what it needs to make muscle, which is protein. The body uses protein to build muscles. You should try to focus on lean proteins that just give your body the healthy part it needs, without the fat that can come with many proteins. Look for beans, lean meats, eggs and fish as your intake options.
Fat
While many people think that any meat is good to take in while trying to gain muscle, that is not true. Fatty meats are going to give your body more work to do to process the parts it does not need. When fat goes into the body, it can clog things up and slow things down. While your body is trying to process and remove fat, it can slow down the rest of its work.
Meals
Instead of just a few meals a day, try to up your meal intake. 5-6 healthy smaller meals through the day means your body will have everything it needs to build the muscles you want. Also, make sure you are getting coverage from all of the food groups so your body is getting all of the nutrients it needs to thrive. Fruits and vegetables, milk and whole grains are vital.
Water
Water is vital for the body to build muscle mass. If your body does not have the water it needs, it will not be able to clear out toxins and conduct all the operations it needs to build muscle mass quickly and easily.