The case for silver and gold is strong because the price has been manipulated to stay low for so long. There is a very strong chance that gold and silver will reach their real market price in the next years. This could be many times the value that they are now.
Food etc. is more important that Gold. It just looks like the value of paper money is set to decrease dramatically, perhaps to what I perceive it's real worth to be and that is zero. Gold and Silver have retained value for the last 5000 years whilst paper money systems have come and gone.