Individual methylmercury intake estimates from local seafood of the Mediterranean Sea, in Italy

•Local seafood supply relevant for MeHg intake in Mediterranean coastal population.•Seafood consumption questionnaire broken into 42 seafood species administered to 278 adults.•30% of 18–45years vulnerable women (N=98) exceeds the TWI for MeHg (1.3μg/kg bw).•The choice of consumed species appears as the main determinant in over-exposure.•The empowerment about a more responsible choice of seafood is envisaged.