Can I eat fish on the use by date?

Chef's answer
You will see 'use by' dates on food that goes off quickly, such as smoked fish, meat products and ready-prepared salads. Don't use any food or drink after the end of the 'use by' date on the label, even if it looks and smells fine. This is because using it after this date could put your health at risk..
Frequently asked Questions 🎓
But remember that salmon, like a lot of other proteins, usually has a sell by date and not a use by date or expiration date. Because of this distinction, you may safely use foods even after the sell by date has lapsed if they have been stored properly.
No, I wouldn't risk it with either meat or fish. Apparently with some foods even if they smell ok then they still might be deteriorating/going bad. Also, senses of smell can vary, someone with a "sensitive nose" might sniff your fish and say that it smells a bit off.
You'll be absolutely fine, chorizo has a very long shelf life. 2 weeks over won't make much difference.
Cooking, or the lack of it, is crucial in all this. ... In other words, wash your hands when handling food, don't use the raw meat knife to spread butter and follow cooking instructions to a 'T'. Then, even though your sausages are, say, three days out of date, you will be fine.
Use-by dates are about safety You will see use-by dates on food that goes off quickly, such as meat products or ready-to-eat salads. ... After the use-by date, don't eat, cook or freeze your food. The food could be unsafe to eat or drink, even if it has been stored correctly and looks and smells fine.
They will be fine, don't worry, keep an eye on them, we eat out of date food all the time. You just have to use your common sense. Heavily processed food like rich ones sausages are the safest if not the healthiest food.
Use by dates are there because a lot of people cannot tell when something is spoiled. If you cooked something until is has piping hot throughout (which you WOULD do with sausages) and the food wasn't discoloured, smelly, slimy or had white bumps of mould growing on it... most likely you will be just fine.
A few more cooking questions 📍