Keep enough food on hand to sustain you and your family for 3 days. Remember that you may not have access to electricity or refrigeration and that water may be scarce. Watch your salt content, salty foods make you drink more water.
Recommendations:
Food (PDF) should require very little preparation—try to avoid things that need cooking
Make sure it’s food your family will eat
Remember to include a manual can-opener and utensils in your emergency supplies
Ready-to-eat canned foods: meat, fruits, vegetables, soup, juice, and powdered or evaporated milk