Yes. But it depends which food.
If a corner of a slice of bread is rotten, I pinch it off and eat the rest.
If the tag says its a day or two past its time, I look at it first. If it still looks good, I eat it.
Cooked food I can't risk, if its on its third day and smells even just a bit off, I bin it.
I can't afford to waste food.
Never gotten sick.