Thank you Candace, What I 1st noticed was his eyes looked kinda yellow, He is tall and skinny but acts healthy, hardley ever gets sick, His first level was 2.1 then 1.7 than 2.2 and last was 3, I just wonder how high it can go with out being toxic to his body? They say it is hereditary but I don't know of anyone else who has it, Did they tell you how you get this? Thanks so much~Anita