When I go to the shops I am buying more of the items than I normally would and have some rice and pasta in the pantry, things that are anathema to a keto dieter. Shortages will happen but I have no real idea WHAT will be short. Bust I buy in some booze, just in case.
Logic tells me that electricity will continue as normal so I am willing to put meat in the freezer and simply don't understand why anyone would buy water that is free out of the tap. As long as power is available so will water be.
