Pringles canned chips can probably be eaten for years without danger. The expiration date (really the "shelf life" date) is an arbitrary date the manufacturer says they have become less flavorful than they think you will consider desirable.
There is no magic date. It will depend on the quality of the food to begin with, the quality and type of container and the subsequent handling and storage thereof. Even canned, food will degrade and change color, texture and flavor. I have used some items that were a year past the coded date. They were edible, but I could tell the difference when compared to newer product. Many canned foods are coded with 2 and even 3 year shelf lives. But for best quality and nutrition, plan to use canned goods within a year. If you are trying to maintain a cache of canned foods, use product throughout the year and replace it with fresh stock. Use the FIFO method - First In First Out. Always use the oldest items first.
No, canned chicken is already cooked and can be eaten straight from the can.
I have routinely eaten canned fruit after their expiration dates. That applies to most canned foods as well. One that doesn't last is canned milk. Toss it after it expires. Beans. canned meat, veggies, soup etc, all last much longer than expiration dates without altering taste or texture much. As long as the can is not punctured it should last much longer. One reason for expiration dates is of course safety. The other being likely, that companies want to sell their products, even if you can't keep up to eating them. So go ahead oand buy on sale eat later.
cook it well....
Chips
Chips are not recommended to be eaten at all while on a diet. Alternative snacks should be sought.
3 months afterwards
Wait till it poops, when it does see if there is any ammo chips are in it.
chips, hamburgers, hotdogs, mmilkshakes
sandwiches chips soups salads
Pie and chips
Some people in Spain eat chips and salsa. However, chips and salsa are not a traditional snack in Spain. Chips and salsa are Mexican and are often eaten with Mexican food.