I have just received a query regarding the sodium content of tuna.
According to McCance and Widdowson tuna has the following sodium content:
Raw tuna 40-50 milligrams/100g
Cooked tuna in oil 290 milligrams/100g
Cooked tuna in brine 320 milligrams/100g
My contact wants to know why the sodium content increases so much through
cooking.
Thanks in anticipation
Richard Chivers
Seafood Audit International
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