Anyone ever get mercury poisoning?

Someone I know has mercury poisoning from eating too much sea food.  Anyone ever get this and have you had luck with chelation? 

Wouldn't he have to eat swordfish three meals a day for a year to get poisoning?

How much was he eating and what fish?

 

yes he gave me aids

How much seafood do you have to eat to get mercury poisoning? 

Yes, but I eat thermometers like Pixie Sticks.

No sword fish Yellow fin tuna,  maybe 3 to 5 times a week