U have muscle memory. What I heard it depends on for how long u have had your muscles before they went away. 1 month on abombs might get u big but wont give u a mm.
Myself was away from training for 2months, and lived mostly on vegetarian food.
Got back here, back to the gym, back to my diet.No juice, and I've been training for three weeks now and up 6kilos, that I am very happy with. AND lost bodyfat. Only used Clen. So yes, u do have musclememory...