What if I had been eating more than 2-3 serves of fish in the past – how long before my mercury levels return to normal?
Providing you follow the recommended number of weekly portions, your mercury levels will return to normal fairly soon. Mercury levels will generally halve within several months, providing you follow the dietary advice and limit the amount of shark/flake, marlin and billfish you consume. If you are concerned about your mercury levels your doctor can advise you on simple tests that are available.