An interesting read, but the trouble is that the Guardian health articles are normally just so bad, so I don't know how accurate this one is
Starts with the statement that too much sugar leads to diabetes, Maybe that could be the other way around? Which chicken which egg?
If you blame sugar excess as a cause, then following the clearance trail for a faulty gene makes sense, but if you are of the impression that diabetes causes high bgl, then that clearance pathway is a consequence,
So diabetes is directly linked to farming and cooking since way back? Then why is it that the population statistics show that the current diabetes epidemic only really started in the 1970's according to WHO. Can't blame that on genetic evolution - more like Chenobyl related.
This report reads more like undergrad researcher scrabbling round for something to hang a thesis on to please his academic masters rather than a properly thought out research project.