Anyone tried dieting like this?

[siouxcountry]

Lets say maintenance is 2000 calories.

Day 1 1000 calories

Day 2 2000 calories

Day 3 2000 calories

repeat.

[efirkey]

I know a lot of diet programs recommend going below maintenance for several days and then going above maintenance for a day to help keep your metabolism up and to trick your body into not thinking it's going into starvation mode.

Maintenance:  2500 calories
Day 1 - 6:  1500 calories
Day 7: 3500 calories

We also call it a cheat day.  For me it's sunday.