As with any "quick weight loss" type of diet (although I stress again, that is not the purpose of this diet), there can be dangers. Rapid weight loss is generally not a good idea, although there may be times when it is warranted. Please consult your physician. This diet does not contain any fiber--hence the laxatives. It also does not contain any protein. It won't kill you to go without protein for 10 days, but you may feel a little weak at times.