If you don't know what GOMAD stands for...YOU SHOULD!
GOMAD = Gallon Of Milk A Day
Its one of the foundations of this program. Not that its for everyone who is doing SS. Not that its for everyone who are doing other programs. Not that its a healthy diet for the rest of your life type of thing. Its for a short season in time. To make you big.
Milk grows baby mammals and makes them big. Real simple. Bears, bulls, tigers....all go from cute and cuddley little guys to big bulky beasts on milk (and a bit of meat doesn't hurt them either). I don't know about you, but I pretty much fall into the baby mammal category. I'm still a novice lifter, maybe an advance novice, but a novice nonetheless. So I will benefit from a program like SS. SS was specifically designed for novices. Its not for the intermediate or advance lifter. They need more complex training programming.
This baby mammal does not. He needs to pick heavy things up, put it on his back and squat it. He needs to pick heavy things off the floor and lift them. He needs to add weight every single workout. And he needs to drink a truckload of milk while eating enough to feed a platoon of starving marines. Plain and simple, right?
It just depends on what your goals are. If you aren't trying to gain mass and get big, then GOMAD is not for you. But a word to the wise...if you are trying to get as stong as possible then you will need to get bigger too. Big muscles move big weight. Small muscles do not. Milk is a key component to growing those muscles. So go out and do your muscles a favor and drown yourself in some milk.