Diabetes, obesity behind 800,000 cases of cancer worldwide

New research has revealed a direct link between diabetes, obesity and cancer and women face the greatest risk. (Shutterstock)
Updated 28 November 2017
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Diabetes, obesity behind 800,000 cases of cancer worldwide

PARIS: Nearly six percent of new cancers diagnosed worldwide in 2012 — some 800,000 cases — were caused by diabetes and excess weight, according to a study published Tuesday.
Among the 12 types of cancer examined, the proportion of cases chalked up to these factors was as high as a third, researchers reported in The Lancet Diabetes & Endocrinology, a leading medical journal.
Cancers stemming from diabetes and obesity combined was almost twice as common among women than men, they found.
And of the two cancer-causing agents, being overweight or obese — above 25 on the body-mass index, or BMI — was responsible for twice as many cancers as diabetes.
The conditions, in reality, are often found together, as obesity is itself a leading risk factor for diabetes.
“While obesity has been associated with cancer for some time, the link between diabetes and cancer has only been established quite recently,” said lead author Jonathan Pearson-Stuttard, a clinical research fellow at Imperial College London’s Faculty of Medicine.
“Our study shows that diabetes — either on its own or combined with being overweight — is responsible for hundreds of thousands of cancer cases each year across the world.”
A surge in both conditions over the last four decades has made the tally significantly worse, the study showed.
The global increase in diabetes between 1980 and 2002 accounted for a quarter of the 800,000 cases, while the obesity epidemic over the same period resulted in an additional 30 percent of cases.
On current trends, the share of cancers attributable to the two conditions will increase by 30 percent for women and 20 percent for men in less than 20 years, the researchers warned.
“In the past, smoking was by far the major risk factor for cancer, but now health care professionals should also be aware that patients who have diabetes or are overweight also have an increased risk,” Pearson-Stuttard said.
For men, obesity and diabetes accounted for more than 40 percent of liver cancers, while for women they were responsible for a third of uterine cancers, and nearly as many cases of breast cancer.
The threshold for obesity is a BMI — one’s weight in kilos divided by one’s height (in centimeters) squared — of 30.
To conduct the study, researchers gathered data on cases of 12 types of cancer from 175 countries in 2012, and matched it with data on weight and diabetes.
People with a BMI of 25 to 29.9 are considered to be overweight.


Where We Are Going Today: Zeila in Riyadh

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Updated 06 January 2026
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Where We Are Going Today: Zeila in Riyadh

  • If you want an Instagrammable dish, check out the breakfast garden — multigrain sourdough topped with beetroot cream and a bed of avocados, edamame and peas, served with poached eggs and hollandaise sauce

As far as breakfast spots go, Riyadh’s main districts have some decent choices. But head east, and you will find a hidden gem in Al-Hamra you should not miss.

We recently discovered Zeila — somewhere that offers great food options without the wait times. 

We started with the Croque Madame — a fried egg with hollandaise sauce atop toasted multigrain sourdough bread, served open-faced with smoked turkey, Emmental cheese, Dijon mustard cream and melted mozzarella. The well-balanced flavors come together smoothly without feeling too heavy for breakfast.

The shakshuka is another strong choice. This wholesome Zeila signature dish features confit bell peppers in olive oil, spicy cumin-tomato sauce, and comes topped with two poached eggs and coriander. It is served with multigrain sourdough.

If you want an Instagrammable dish, check out the breakfast garden — multigrain sourdough topped with beetroot cream and a bed of avocados, edamame and peas, served with poached eggs and hollandaise sauce.

On the heartier side, the mouthwatering selection of egg dishes includes a ribs Benedict, carbonara croissant, and a black truffle Benedict.

We couldn’t leave our sweet tooth hanging, so we opted for the Russian pancakes for a sweet, yet not overly so, ending to the meal.

But there are more innovative dishes, such as the Om Ali, which is prepared with freshly toasted croissant slices soaked in a mixture of milk and cream, complemented with a selection of nuts and locally made fresh cream. There is also a creme brulee crepe, or banoffee French toast made with salted caramel and grilled banana, served with vanilla ice cream.

The service was great, though the plastic utensils provided were disappointing.

However, Zeila’s interior is what really makes the trip worthwhile. The space, warm with natural light from the high glass walls, is spacious yet retains a comfortable ambience.

Adorned with hammock swing chairs, cozy leather couches, an outdoor seating area and luscious plants, it’s a great place to explore this winter whether you’re looking for a full meal or a cup of coffee while you do some work.