This should be 'affect' shouldn't it?

[TheNemesisOfLame]

I thought I had affect/effect nailed. Now the BBC are making me doubt myself...

Yes, I agree with you. Affect would be correct here.

I increasingly notice so many mistakes on the BBC website...

Yes you're right
Or in bbc speak
Your write

The effects of genetic modification on our food

How genetic modification will affect our food

Stealth