Number 4- Use a powdered protein or mass gainer

A powdered protein, like a whey is great to help increase your daily protein intake. It's perfect for after your workout when your body is catabolic, and will absorb more nutrients. Also a mass gainer is great to help meet and exceed your daily caloric intake. They do exactly what they're named for, gaining mass. Read my post on how to make a great home-made mass gainer here - http://codygarber.blogspot.com/2012/08/home-made-mass-gainer-shake.html?m=1