Adolescents and adults ingest the highest percentage of microplastics from bivalves like blood cockles and green mussels, even though they eat less of these seafoods than other types, because these...
Mechanism
Synthesis from 1 study
These shellfish suck in seawater to eat, and tiny plastic bits get stuck inside them. When people eat the whole shellfish, they swallow all that trapped plastic at once — so even a small amount of shellfish gives more plastic than a big piece of fish where only the meat is eaten.
Most probable mechanism
These shellfish constantly filter large amounts of seawater to feed, trapping tiny plastic particles inside their bodies. When people eat them whole, including the tissues where the plastics are stored, they swallow more plastic per gram of food than when eating other seafood where only muscle is consumed.
Filter-feeding organisms continuously pump seawater through their gills and digestive systems, physically trapping microplastic particles suspended in the water column within their soft tissues.
Microplastics accumulate in digestive glands, gills, and mantle tissues without being fully expelled due to limited excretion capacity in these organisms.
Human consumption of these organisms includes ingestion of all internal tissues, delivering concentrated microplastic loads directly into the gastrointestinal tract.
Evidence from Studies
Supporting (1)
Community contributions welcome
Assessing Age‐Specific Variability in Microplastic Intake Through Seafood Consumption: A Case Study in Central Java, Indonesia
Contradicting (0)
Community contributions welcome
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.