Thanks @Hip -- yeah, I haven't found any sources yet either. But they have to be out there.
It's a very helpful supp btw, as the conversion from thiamine can be inhibited very easily. In fact thiamine itself can be blocked or inhibited by so many foods, toxins, etc. But I've only found it in a sublingual which contains citric acid...which is very hard on teeth.
It's also available from the UK in liquid form, but the dose is so weak it's almost like water...
It's a very helpful supp btw, as the conversion from thiamine can be inhibited very easily. In fact thiamine itself can be blocked or inhibited by so many foods, toxins, etc. But I've only found it in a sublingual which contains citric acid...which is very hard on teeth.
It's also available from the UK in liquid form, but the dose is so weak it's almost like water...