Healthy people can survive for a long time on half of what they would usually eat, and without any food at all for many days. Food, unlike water, may be rationed safely, except for children and pregnant women. Follow these tips if your food supply is limited during an emergency:
Eat salt-free crackers, whole grain cereals and canned foods with high liquid content rather than high fat, high protein or salty foods that make you thirsty.
If at home, use up foods from your refrigerator and freezer first, then use the canned foods, dry mixes, and other things you already have on your cupboard shelves.
Continue to drink water and other liquids as normal if you can.