Take some time and educate yourself before you make such stupid statments. For starters, if you are a type 1 or have a type 1 child you BETTER be thinking ahead of the game.
Yes - prepper doctors have many blogs and websites that offer information on how to prep for the worst. for example
http://www.doomandbloom.net/2011/10/the-formula-for-making-insulin.html
This is just one of many. I can't prep for YOUR insulin needs - only YOU can do that.
As for all of these nincompoops on here talking about the unwashed urban masses invading them in their rural shangri-la’s, I have never seen so much mean-spirited - and I mean truly evil - thinking when people start talking about this. I have a hunch that the city folks most people are referring to will implode before they ever get out to the country.
Read up on some of the events surrounding Katrina PP as well as other historical events. If a situation hits where lawlessness is unchecked, people can and will do those things.
The very presence and abundance of information encouraging people to become prepared is the very example of loving one's neighbor. If you choose to ignore those warnings - then it is on you, as in a crisis/disaster MY RESOURCES will be stretched and will be relying upon MY preparations to get through. I will help where I can, but to impune our efforts by some misaligned slur that we don't love our neighbor jumps the shark.
Proper eating will buy time. Study up on the Atkins Diet aka Low Carbohydrates. Simply put - eat strictly meat and restrict carbohydrate intake to those fruits (berries) and vegetables (greens, summer squash and coniferous vegs like broccoli and cauliflower) which are low on the scale.