There's a popular theory that pausing a weight loss plan to have a maintenance phase is beneficial long-term to weight loss. A quick Google didn't show me any actual studies on this, but I am not quite sure what terminology to use for this pausing-diet-to-maintain is, so my search may have been ineffective. Perhaps it is just a crazy internet theory?
Basically the idea is that during a period of eating in a deficit, your metabolism adjusts down slightly, and a maintenances phase could boost it again, making weight loss easier and preventing long term changes to metabolism.
Obviously there can be benefits psychologically too, depending on how your mind works. Some people get weary of the restriction and a break can help scratch an itch and give them new enthusiasm. Others might fall off the wagon!
It sounds sensible in theory.
If it is a real thing, I'm unsure how to actually implement it.
How long do you do it for? Internet says a whole variety of things, from 3 days maintenance right up to maintaining for as long as you were in deficit!
How often do you do it? Is it only for people who need to lose a lot and will be dieting for a long time, or could it benefit shorter diets too (eg half a stone or something)? That's me - need to lose about 8lb. Will it still be helpful?