High levels of "forever chemicals" may be in seafood. Forever chemicals are man-made. They stay in our blood and lead to health problems like cancer and kidney problems. Researchers said we need safety guidelines, especially for things like prawns and lobster. People who love seafood may have to change what they eat.

Forever chemicals are found in food packaging and food containers. The chemicals are now in our food chain. A professor wants people to be aware of the risks, and to understand more about what is in the food we eat. She said: "Our recommendation isn't to not eat seafood."