will only eating fruit and crackers for less than 2weeks ruin my metabolism...

[zoey5720]

...forever/long term or not.? ive been on a friuit and cracker diet for a couple days now and some people keep telling me i'm ruining my metabolism, and some of them say i'm not. i dont believe i am because im only doing it for 11days then slowly bringing solid foods back in. please help if you have hard knowledge, as in a collage degree/fitness trainer/doctor/