Guidance for England and Wales comes amid increasing concern over rate of obesity and cost to NHS
A health watchdog is urging millions of people for the first time to ensure their waist size is less than half their height in order to help stave off serious health problems.
The UK has one of the worst obesity rates in Europe, with two in three adults officially overweight or obese in an escalating crisis that now costs the NHS £6bn a year and wider society £27bn.
