As for strategies, personally I keep as clear of processed branded 'food products' as I can. Well, not completely, but it's an 80% thing I guess. I realise that's not the norm in modern western society, for a number of reasons. But clearly the advent of advertising has a great deal to answer for regarding the generation of huge food-culture shifts in all modern nations, towards processed branded products and away from more traditional 'real' food. To add to your list above, I applaud the 'slow food' movement, as well as the 'freegan' movement.