The specific items I referenced were much more spoilage prone than canned goods. Specifically,a gallon of the high shelf life milk that should be good for at least a month expired in 3 days. I can assure you I'd end up throwing over half away.
The other was "canned" peaches actually sealed in the little cup like plastic container. These usually have a 10-12 month shelf life but much less than those sealed in real cans.
The ones we got were past date by over a month.
Had it been in a can I probably would used but the plastic not so much.
As always use good judgement when buying and consuming anything.
Mark 1:17 ...I will make you fishers of men