It depends how short bling. I'd say anything longer than a week where the large intestine is sterilised from the lack of use and cleansing extra care needs to be taken not to introduce highly concentrated foods or supplements. If it is done too soon and the body is not ready to process the unnaturally high levels of whatever nutrient it is the body can literally shutdown. You'd want to be very sure your bodies' digestion system is truly back to normal before you do in my opinion.