Few people get beyond storing the four basic items, but it is extremely important that you do so. Never put all your eggs in one basket. Store dehydrated and/or freeze-dried foods as well as home canned and store-bought canned goods. Make sure you add cooking oil, shortening, baking powder, soda, yeast and powdered eggs. You can’t cook even the most basic recipes without these items. Because of limited space I won’t list all the items that should be included in a well-balanced storage program. They are all included in the The New Cookin’ With Home Storage cookbook, as well as information on how much to store, and where to purchase it.
It isn't hysteria, and GMO isn't 'evolution'. One of the biggest issues for preppers and survival is that GMO seeds will not reproduce in the same way if the seeds are saved and re-used. In fact, in many instances (maybe all?), it's illegal to save the seeds and re-use them! It's far better to track down heirloom seeds that are native to your area and/or compatible with your climate. A good place to start looking is ×