Love 5x5 training and followed a program very similar to SS for a long time, but this idea that you should drink 2,000 calories of milk a day is pretty silly honestly.
"I'm asking you to eat and drink milk 4-5 times a day." -Mark Rippetoe
https://www.youtube.com/watch?v=2tk9vi0FJgI
#MasculineFrame
Discussion
In this context Rip was talking about little guys early in the progression. Once you are strong, becoming lean and maintaining is a fine goal (imho).