Sources Of Vitamin B1?

Hi guys,

Firstly this might be in slightly the wrong place, but its more a diet question than a health question...

I posted a little while ago about a sick little bird I have called Annie (who we only just found out is a girl, she's a recessive pied so it was a bit hard to tell). She has heavy metal poisoning (the vet thinks its zinc). We finished the chelation therapy 2 weeks ago but she's started to go downhill again despite me going over the cage thoroughly looking for anything that could be causing it and finding nothing. I've started giving her her meds again because I'm thinking that we didn't quite get rid of it all last time. I rang the vet and that's what he thinks too. I know it sounds callous but I really can't afford another xray for the little one, I've already spent a lot of money and am on a students income

She's been having seizures the last 12 hrs so I'm starting to think it might be time to consider having her put down. I really don't want to do that but if I can't fix this I don't want her to suffer.

I've been reading up on other remedies for heavy metal poisoning and some pages have suggested B1 prevents further nerve and tissue damage so I'm looking to supplement her diet with this. Does anyone know what kind of budgie-suitable foods contain high levels of this vitamin?

I also want to feed her something that is likely to help her pass any pieces of metal that might still be in her digestive tract. I was thinking psyllium husks might help?

Any advice would be appreciated, I really want to give her the best chance.

Cheers,

Shann