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Diabetes

28 June 2018

How belly fat increases your risk of diabetes

We know that excess weight increases your risk for many diseases. But it’s a specific kind of fat that makes you more susceptible to diabetes.

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It’s a fact that being overweight or obese increases your risk of chronic diseases, including type 2 diabetes.

Unfortunately this doesn’t necessarily mean that slimmer people are safe. If you have slim legs but carry extra weight around your waist, you could be at higher risk for type 2 diabetes, according to a recent study from the University of Oxford.

It's in the genes

The study found a certain gene that causes some people to have an excess of visceral fat was to blame. Visceral fat is fat surrounding the internal organs, which manifests as a flabby belly.

The gene in question is called KLF14, which was shown to modify the way how fat is stored in the human body – meaning that fat is distributed around the belly rather than the hips, especially in men.

Not all fat is equal

Diabetes.co.uk states that not all fat is equal – where the fat is distributed makes a difference in one's risk for diabetes.

According to Harvard Medical School there are several reasons why abdominal fat is more dangerous than any other fat in the body. It is specifically the fat inside the abdomen, located around the internal organs, that is truly bad for your health.

One of the earlier explanations was that this type of fat was linked to the overreaction of the body’s stress response mechanisms, which would lead to a higher blood pressure, higher blood sugar levels and risk of heart diseases.

How is belly fat linked to diabetes?

However, Harvard Medical School's most recent theory is that the fat closest to the organs releases metabolic products directly into the part of the body that carries blood straight to the liver. This means that these fat cells pour fatty acids into the liver, pancreas, heart and other organs – cells that are not engineered to store fat. This leads to organ dysfunction, causing improper control of insulin, blood sugar and cholesterol, which, in turn, can increase your risk of chronic disease.

Visceral fat increases the risk for type 2 diabetes in the following way: The more insulin is produced, the more glucose is taken up by the liver to store for future use. But if the liver is covered in fatty tissue, it can't respond to the insulin quickly enough.

As a result, your blood sugar accumulates in the blood stream instead of being processed by the liver. This causes damage to organs all over your body.

belly fat and diabetes

Measure your waist to determine your risk

According to the World Health Organization, studies indicate that the measurement of waist circumference is a better indication of diabetes risk than body mass index – however, it can't be used as the only tool.

Discovery Health recognises the importance of waist circumference as an indication of risk, as they state that accumulated fat can indicate specific health risks. They recommend assessing your risk of diabetes and other diseases by measuring your waist circumference as follows:

  • Place the tape measure around your stomach at the level of the belly button. Note that the tape should be snug, but not compressing the skin.
  • A man with a waist measurement greater than 102cm and a woman with a waist measurement greater than 88cm are considered more at risk for type 2 diabetes and other diseases.

Slim down your belly

Luckily, even the slightest efforts to lose weight and cut down the circumference of your belly can lower your risk for type 2 diabetes:

  • Eat plenty of fibre and fruit and vegetables.
  • Avoid or cut down on processed foods high in sodium, fat and sugar. 
  • Include lean protein in your diet. 
  • Avoid alcohol.
  • Spot reduction (targeting belly fat with specific exercises for the abdomen) won't get rid of belly fat, so it's important to incorporate cardiovascular exercise (walking, running, cycling or swimming) into your routine, as this has been shown to get rid of belly fat. 
  • Lift weights – resistance training does wonders for the metabolism and can help you get rid of belly fat when done together with cardiovascular exercise. 

Image credit: iStock

 

Ask the Expert

Diabetes expert

Dr. May currently works as a fulltime endocrinologist and has been in private practice since 2004. He has a variety of interests, predominantly obesity and diabetes, but also sees patients with osteoporosis, thyroid disorders, men's health disorders, pituitary and adrenal disorders, polycystic ovaries, and disorders of growth. He is a leading member of several obesity and diabetes societies and runs a trial centre for new drugs.

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