Rodipet have a new range of hamster foods that are organic (bio). They still have the existing range as well. I've sent for some. For Syrians the junior and senior mixes seem to have identical ingredients - except for the junior one having squid and no millet and the senior one having millet and no squid. Maybe just different proportions. Protein levels are similar for both.
They no longer put crickets and silk worms etc in for protein and have soya beans in (organic ones though). There's a note further down saying they recommend supplementing with their insects but haven't put them in for hamsters individual tastes varying! (ie they don't eat the crickets and silkworms! Neither of mine have anyway so have always had to supplement the protein).
Ironically I used to get their mixes (and the Bunny Dream one and mix it) because they didn't rely on soya for protein. However it's excellent that there is a 100% organic hamster food available.
The protein is always a bit low in their mixes so would need a bit of supplementing (eg mealworms etc) - I rely on nuts and freeze dried chicken or egg for additional protein. But it's higher than it is in the standard mixes.
There is also an organic mix for dwarf hamsters and long haired hamsters as well
It's not cheap though and postage is on top. I buy two at a time.
https://www.rodipet.de/shop/futter/bio-hauptfutter/