Does pre-diabetes really exist?

Pre-diabetes is an artificial category with virtually zero clinical relevance,’ said an American professor in the Times. A friend of mine has even been told by the vet that her little cat is in a pre-diabetic condition, being a little over the norm on the feline body mass index. I began to think that pre-diabetes was like the countryman’s hills: if you can see them it’s going to rain. (If you can’t, it’s raining — you’ve got diabetes.) But then I did something sensible. I looked up the term in the dictionary.

It is no neologism. The first example in the OED comes from more than 100 years ago. ‘At present we know little of any pre-diabetic stage of diabetes,’ a expert wrote in the Lancet in 1907, ‘and it is not possible to foretell whether a given case of pancreatitis will or will not go on to diabetes.’ No doubt more is known today, and in any case, sitting around eating eccles cakes all day reduced the odds against.