I was asked to post this,but hopefully it will be helpful
There are some big misunderstandings and lack of accurate information regarding certain dyes,especially since it can be a bit difficult to find the information on some dyes(not all resources give the full spectrum of information).Tartrazine is one huge example of this problem.
https://cspinet.org/sites/default/fi...w-of-risks.pdf
This is one of the more reliable sources in terms of dye information,and does in fact show yellow 5(Tartrazine)to be harmful(causes tumors).However,even if that information is not extremely widespread it is still not worth the very serious risk of having to question whether or not something is safe(just because instant death isn't seen or some people may not experience any issues doesn't mean something is safe).
Luckily,there are still alternatives to this food that would be fairly simple and without the major risks of artificial dyes!
Burgess Hamster Harvest(regular,not dwarf)would now be superior as it wouldn't contain artificial dyes.This is honestly the easiest option as it wouldn't require any modification or calculation as the next possible solutions,so it's certainly worth considering.
Other alternatives would be mixing several foods in calculated percentages by weight to get adequate protein and dye free foods with entirely safe ingredients(in this situation,foods that would've been considered less than ideal for example containing fish or cheese would now be potential options).
Mixed diet food options:
JR Farm Hamster Feast. Free P&P on orders £29+ at zooplus!
JR Farm Feast for Dwarf Hamsters. Free P&P on orders £29+ at zooplus!
Bunny Dwarf HamsterDream Expert | Free P&P on orders £29+ at zooplus!
Bunny GerbilDream BASIC | Free P&P on orders £29+ at zooplus!
I'm sure there will be people who assume dwarf foods won't work for Syrians,but really they can be quite happy with a diet combining smaller pieces of food and larger pieces as well.The gerbil food is very much a personal opinion and not everyone will like it,but it's still good to keep an open mind.
As far as benefits go,Burgess for example would actually include animal protein making it more species appropriate than Harry Hamster.It's not much more in cost either,so for those who don't feel comfortable mixing foods(and supplementing with freeze dried chicken or other hamster safe meats and flax seed)it would be a great choice.