As the Mail revealed yesterday, the NHS will be offering people with type 2 diabetes a liquid diet of just 800 calories a day under medical supervision as part of radical plans to turn the tide on the disease. There is another way: Dr Michael Mosley’s ground-breaking 8-Week Blood Sugar Diet from his book.  Here, in the first part of a two-part series, we publish his simple yet healthy and tasty plan for sticking to 800 calories a day — while still feeling full.  Six years ago I discovered, after a routine blood test, that I was a type 2 diabetic. This was a particularly nasty shock because my father had died, aged 74, from complications of diabetes. But rather than start on medication, which is what my doctor advised, I decided to find something I could do to overcome diabetes without drugs. I’m not alone in trying to find a solution to this cruel disease, which is at epidemic proportions: one in three Britons now has pre-diabetes (blood sugar levels that are abnormally high but not yet in the diabetic range), while about four million have the condition itself. And if you do have pre-diabetes (and unless you’ve been tested you won’t know), there’s a 30 per cent chance that with...