To BUILD MUSCLE you have to take in more calories than your body needs to maintain your current weight and include this with a weightlifting program. If you are natural lifter you won't be able to add a noticeable amount of muscle to your frame unless you're taking enough calories and nutrients to support muscle growth. If this is not followed you may even lose muscle despite your hours of lifting weights at the gym.
So with that said, if you are not taking in enough nutrients your muscle growth will be hampered, but this does not mean that the more you eat the more muscle you will build. I to have made this error 3-4 years earlier on in my quest to build muscle and its one of the biggest mistakes a natural lifter can make when training to build an eye catching muscular physique.
