Give me some sugar

Can you see what is wrong with this graph?

sugar consumption per person uk

It switches from being a chart for the UK to one for the US in the 1970s. Why would it do that?

uk KG per person sugar consumption

This graph which is actually for UK sugar consumption shows a decline from the 1970s onwards.

The first chart was tweeted by the Managing Editor of the New Scientist as part of an article in support of a sugar tax. Was Rowan Hooper deliberately misusing data or does this kind of thing often get missed in his magazine? Not good either way.

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