The figures, compiled by the Sunday Express, were based on data from the charity Diabetes UK, together with a response to a parliamentary question.
The news comes as it emerged supermarkets will be forced to stop offering unhealthy snacks at checkouts, referred to as “guilt lanes”.
There will also be an end to two-for-one offers on junk food under a wave of new Government legislation to tackle childhood obesity.
Ministers will also consider a ban on the use of cartoon characters and celebrities to promote junk food as part of a package of measures being considered by Health Secretary Jeremy Hunt, according to a newspaper report yesterday.
A parliamentary question asked by deputy Labour leader Tom Watson revealed that the number of patients with diabetes is set to spiral over the next 10 years.
More than four million people in England have diabetes – representing eight per cent of the population.
This is predicted to rise to 9.3 per cent of the population by 2030 – representing almost five million people.
The figures did not distinguish between Type 1 diabetes and Type 2, which is linked to obesity.
However, across the UK, nine out of 10 cases of diabetes are Type 2.
Separate data shows how this will lead to a huge rise in diabetes-related health costs, which include drugs to treat the condition, amputations, eye damage, heart and kidney problems.
Tam Fry, chair of the National Obesity Forum, said: “It is an indictment on the lack of government commitment to prevent obesity, or the diseases triggered by obesity, that we have these appalling figures.
“Reading them, it would seem that the much heralded Diabetes Prevention Plan, introduced four years ago, is unequal to the task set for it.
“And if our obesity epidemic doesn’t bring the NHS to its knees, the rising costs of treating diabetes surely will.”
Professor Philip James, founder of the International Obesity Task Force, said: “These figures are shocking, but much of the costs have not been accounted for and so are likely to be a gross underestimate.
“It is high time the Government took a far more drastic approach to the problem.
“This is currently the biggest threat to our health service and the Government needs to take a different approach.”
Mr Watson said: “It’s a tragedy that millions are suffering from what in some cases is a preventable disease.
“It’s also taking a huge financial toll on the NHS, costing hundreds of millions every year.”
A Department of Health and Social Care spokesman said: “We are delivering the world’s most ambitious plans on childhood obesity and diabetes preventions.
“These include sugar reduction targets, taxing sugary drinks and funding research on junk food advertising.
“We’ve always said that our 2016 plan was the start of the conversation, not the final word on obesity.”