The American Association of Pediatrics recommends delaying solids until 6 months old.. If your water supply is limited, don’t eat salty foods, since they will make you thirsty. Instead, eat salt-free crackers, whole grain cereals, and canned foods with high liquid content. 4. The goal for babies between 6 and 12 months is to ensure adequate nutrition intake and overall growth. usual food intake for an extended period and without any food for many days. Canned Soup Mountain House Meal $7.99 Amazon.com In order to effectively achieve this, introduce solids slowly and in multiple exposures. 3. Cost per day: $25 to $35 Cost for six months: $4,500 to $6,300, plus shipping (though discounts may be available for large orders) Longevity: 25-plus years. Food, unlike water, may be rationed safely, except for children and pregnant women. I tend to put these through my juicer for smoothies. Canned Meats. The greatest asset to freeze-dried food is shelf life, with 25 years or more expected. A six-month supply for us is 30 cans since we don’t eat a lot of fruits in my house. You'll need about 180 cans or 720 pouches for a six-month food stash. I try to keep 20 to 24 cans of tuna in water, 10 large cans of chicken, three to five cans of bean-less chili for chili dogs and five cans each of Spam and Treat.