There are pieces of plastic called microplastics in seafood. These are tiny pieces of plastic from our garbage. They are becoming more common in oysters and other kinds of shellfish. Scientists say there are more than five trillion pieces of microplastic in our oceans. There is more every day. A marine biologist said: "Hundreds of marine organisms [mix with] plastic…in the water…and many of those encounters are harmful [or deadly]."
A study into microplastics showed that people eat up to 11,000 pieces of plastic each year. Only around 60 of these stay in our body - the rest go down the toilet. Sixty pieces is not a lot but they will build up and be bad for our health. By 2099, seafood eaters could eat up to 780,000 pieces of plastic a year. That will cause many health problems. Scientists say we need to recycle more. We should also use other things instead of plastic.