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Ocean activists are calling for tinned tuna to be banned from hospitals, school canteens, care homes and maternity wards after high concentrations of mercury were found in every sample analysed. Dr Xand busts myths around tuna and whether you need to be worried about the amount you eat. He explains how tuna is a good source of protein and that studies have shown it's unlikely that the average person will consume enough mercury via the fish to cause them serious harm.

To watch this with subtitles, go to ´óÏó´«Ã½ iPlayer and search for Morning Live from 25/11/24.