Keith Gottschalk concludes his letter by saying we should adopt a healthy scepticism towards doomsday cults of any sort, including food fads (“Where are the peak oil theorists? (https://www.businesslive.co.za/bd/opinion/letters/2020-04-08-letter-where-are-the-peak-oil-theorists/)” April 8). I agree.

I think that he could have added the more extreme of the anthropogenic climate-change protagonists to the list, noting that this is often coupled with food fascism...

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