There's an online series running at the moment. It's currently about halfway through but they usually do a replay weekend at the end where you can catch any you might wish to view again, or any you have missed. The reason I haven't posted about it is that although much of the content could apply anywhere, at the moment much of it is US based.
It's called Gmos Revealed. gmosrevealed.com
The reason that I think some of the info may become more relevant to UK person's is that we still don't know where the Brexit debate will end, and where we may be sourcing future food supplies.
You haven't got to buy the series to view the information online. It would really surprise me if you really know much of the information contained in this series.
If you eat food, this is info relevant to you.