Hi everyone with PKU. I have been diagnosed with having Alopecia Areata and got adult Classical PKU. I was wondering does anyone know what could be causing this and whether anyone with PKU got it? I have lost eyelashes(2 lids), scalp hair, beard hair, body hair and now my eyebrow is sparse. I have had lots of tests for iron, thyroid and hormone but fine however had a mild zinc deficiency since Aug but on tabs for this. Would zinc deficiency trigger this? Any ideas would be very much appreciated as the longer I have this the harder it is for the disease to go into remission.