I have a Thyroid problem and have been trying to find a good way to get round the Iodine issue which all reliable systems seem to use.
I have just discovered from the nice people at Pre-Mac that they produce a Outlet Filter which removes the Iodine - However you do need to filter everything twice. I have purchase this filter and will be trying it out.
You need to contact Pre-Mac direct to purchase this filter as it dosnt seem to be advertised anywhere. 01732460333
Before anybody asks - I cant find any information on why Iodine is an issue with Thyroid problems? Everybody seems to know about it but nobody can provide any data.