It depends on where you prefer to buy food. In supermarkets, everything is washed, wrapped in plastic, the veg has travelled from all over the place and the meat is generally too fresh to be tasty, of variable quality, and expensive. If you take all the packaging, washing chemicals and immense amounts of plastic out of the equation, you have a less antiseptic system but more scope for high quality, less expensive food.
In the last ten years, there is a steady downward trend on cooking from scratch - everything is packaged to within an inch of its life. Buying and preparing food is a pleasure that seems to be increasingly hard to find.
The market in Cork is on a par with most European markets, and a lot better than many. It is not a supermarket, and I sincerely hope it never becomes one. You are not going to get ill from it - it is poor hygiene at home which is the reason for most cases of food poisoning.