How is a transition made from Mass gain to fat loss?

[RussianRocket]

I have all my diets planned and know exactly what to consume, all I want to know is, do I cut cold turkey my mass gain diet and go on the fat loss diet the next day or do I gradually drop the cals and if so, over what period of time?

Thanks in advance,
-Yohan

 

[Joe Stenson]

You want to transition slowly or you'll lose muscle. Eat at maintenance for a couple weeks, then gradually start lowering calories weekly until you're where you want to be.

 

[Clean]

gradual