You can live on canned fruit or other fruits if that is all you have.
However it's best to have a variety of different canned foods or shelf stable foods around in the event there's something that prevents you from getting food and you need to survive.
It's best to have some canned meats, canned vegetables etc along with the canned fruit.
The best canned foods to stockpile are canned corn, canned Lasagne, chicken noodle soup, canned Ravoli, Spaghettios, tuna, salmon, chicken, corned beef, turkey, Spam, and even bacon.
You can also eat the food in the dented can if the can has no holes in it.
Just because a food can is dented it does not mean the food is bad or unsafe to eat.
Many people assume that because the can is dented that it's not safe to eat the food but that is not true as the food is still safely contained and sealed in the can unless it is actually leaking.
Canned food can last for basically forever although it has an expiration date.
Expired canned food is safe to eat and is just as good as fresh canned food as the food being in a can helps to preserve it and make it shelf stable.
Most shelf-stable foods are safe indefinitely.
In fact, canned goods will last for years, as long as the can itself is in good condition (no rust, dents, or swelling).
Packaged foods (cereal, pasta, cookies) will be safe past the 'best by' date, although they may eventually become stale or develop an off flavor.
While canned goods past their "best-by" date may not taste optimal, there's no real health risk in consuming canned goods as long as they remain in good condition.
If the can is leaking, bulging, or swollen; the container looks damaged, cracked, or abnormal; the container spurts liquid or foam when opened; or. the food is discolored, moldy, or smells bad then it should be thrown out.
Although it's a rare occurrence, botulism is generally associated with improper home canning, but may still be found in some consumer food products.
It's a serious illness that paralyzes muscles and can even lead to death.