Nah I am not, its what I had been told by the bloke that is still flying.
He got tested every 3 months and his levels apparently took a year to get into normal band. I might have the wrong term with toxins, enzymes would be proberly better. 300 rings a bell with his liver function test and he had a fatty liver what ever that is.
I am sure ginger will be along soon to give us the real data.