In case you don't want to act as a Guinea pig you might consider buying food which is certified, or declared, to contain no OGM. That means, as far as I know but I could be wrong, excluding most of produce coming from the US unless certified no OGM-derived products inside, because the US allow the confusion of OGM food with non-OGM food (the distributive chain mixes OGM and non-OGM raw matters if you buy "rapeseed oil" you have no idea how much of it is derived from GM rapeseed).
The general rule in Europe is that OGM-derived European produce cannot be used for human consumption, BUT there is no prohibition regarding OGM-derived produce (typically US import) which is not traceable.
If you want to avoid food from OGM you better avoid US-made food containing corn, rapeseed oil, and other common GM produce. That's true in Europe as well, you have to avoid products containing US produced raw material.
To state it better, as far as I know GM corn is not allowed in European produced food but if you buy that Bonduelle can of corn (which contains US corn) you are buying an unknown percentage of GM corn. The fact that Bonduelle is a French brand doesn't help because it can use US corn and trade treaties between Europe and US don't allow exclusion from imports for goods for which there is no OGM traceability, which - is argued - is precisely the reason why there is no traceability in the US. (If it was traced the import of OGM-derived produce for human consumption could be forbidden).
There is probably something wrong in what above but you get the general meaning. Europe is forbidding OGM-derived products for human consumptions only if the OGM-product is European.
The underlying bet is possibly that, in the long run, people will see US products as "junk" and European products as "quality" products as the US will have compromised their reputation as a provider of food products.
For the moment if you buy a rapeseed oil bottle you might want to check the country of origin.