My local library didn't have GCBC (aka Diet Delusion) so I picked up "We want real food" by Graham Harvey instead.
Interesting stuff. Although he believes in the "wholegrains are good", he states that the saturated fat/heart disease thing has been dismissed, and talks a fair bit about Weston A Price and Sally Fallon ("nourishing traditions").
It's more a focus on farming and depleted soils leading to deficiencies in modern diets, hence the older populations mentioned by WAPF being healthier.
Also looks at benefits of truly grass-fed meat as opposed to factory farming.
Tragic background on how UK farming was/is ruined, and also a simple key principle for anyone growing their own veggies!
So not what I intended to read, but I demolished it in 2 hours so it was worthwhile looking at!