It helps In the management of our daily health: Good food hygiene practices reduce the risk to our daily health. Being more informed and exposed to food hygiene benefits our health a lot. It increases longevity and reduces the money spent on medical bills.
It prevents food contamination: Sickness easily comes from foods that are not prepared by observing good hygiene practices. Diseases like escherichia coli can be caused by beef contamination with feces during slaughter. Therefore failure to wash the beef properly before cooking will cause this disease due to contamination.
It prevents diseases and death: Food contamination from bacteria, viruses, or other parasitic agents can result in gastroenteritis, dehydration, and some other critical health problems like kidney failure and https://earthlydiets.com/10-importance-of-food-hygiene/

I don't buy food at markets, because it's completely unsanitary. I do buy my groceries in the supermarket. I trust them more.