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Diabetes is a condition that arises when there is too much sugar in your bloodstream. Long-term, it can cause a variety of health problems including heart disease, kidney disease and nerve damage.
In fact, diabetics are twice as likely Trusted source Centers for Disease Control and Prevention (CDC) Government Source Go to source to develop heart disease compared with non-diabetics.
Keep reading to discover the risk factors and lifestyle habits that increase your chances of developing this condition, as well as ways of reversing high blood sugar levels through diet and exercise.
An essential hormone called insulin plays a role in controlling blood sugar levels.
When we eat, food is broken down into sugar which enters your bloodstream. This rise in blood glucose (sugar) after a meal is sometimes referred to as a glucose spike.
Your body will then release insulin, which allows sugar from the blood to be transported into nearby cells. These cells use the sugar as a source of energy.
Any excess sugar that isn’t taken up by your cells is converted into glycogen and stored in the liver. When your body needs energy but isn’t eating (such as during sleep), this glycogen is converted back into glucose and used as fuel.
If there’s still excess glucose, this will be converted into fat.
There are two types of diabetes:
Type 1 diabetes is caused by a genetic fault and is diagnosed from an early age. The body destroys some of its own cells, making it impossible for the pancreas to produce insulin.
As a result, type 1 diabetics have to inject themselves with insulin to keep their blood glucose levels healthy. Moreover, the condition cannot be reversed with specific lifestyle changes.
Type 2 diabetes, however, develops over time and is largely impacted by lifestyle factors including your weight and diet. Type 2 diabetics either:
Type 1 diabetes | Type 2 diabetes |
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Type 2 diabetes is much more common than type 1. Globally, more than 95% of adults Trusted source World Health Organization (WHO) Government Source International Public Health Information Go to source with diabetes have type 2.
What causes diabetes exactly is difficult to know. Ultimately, it is caused by too much sugar building up in the bloodstream.
Over time, your cells stop responding to insulin (insulin resistance). This means that sugar stays in the blood instead of being taken up by cells and used for energy.
As blood sugar levels continue to rise, your body may even receive hunger cues in an attempt to get more energy to your cells. However, as your cells have stopped responding to insulin, the sugar ends up staying in the bloodstream.
Excess blood sugar is sent by the liver to fat cells and stored as body fat, which causes weight gain.
The following genetic and environmental factors are some of the most common causes of diabetes.
A long-term diet that consists of lots of sugar can impact your ability to produce insulin and contribute towards the development of diabetes.
Sugary foods cause blood sugar levels to spike quickly. To combat this spike you need to produce higher amounts of insulin. Over time, your body struggles to keep up with this high demand for insulin and your blood sugar levels remain too high.
Common foods that spike your blood sugar levels quickly include:
People of all shapes and sizes can develop diabetes. However, if you are not physically active and have higher levels of visceral fat (the fat which forms around your organs), you are more at risk of developing type 2.
The larger your waist size, the more visceral fat you have around your vital organs. This kind of fat is much more dangerous than subcutaneous fat (which is fat on your body you can pinch).
Obesity causes your body to become more resistant to insulin. This affects how much sugar is taken up by your cells and used for energy.
People living with obesity often eat high-sugar diets, which further contributes to dangerously high blood glucose levels.
Diabetes also promotes fat storage, making it more challenging for diabetics to lose weight and improve their condition.
People with a family history of type 2 diabetes are more likely to develop it themselves. If you have a close blood relative living with diabetes, you’re 2-6 times more likely to develop the condition yourself.
Close blood relatives include:
Research Trusted source National Center for Biotechnology Information (NCBI) Government Source Biomedical Research and Literature Go to source has shown that people from the following backgrounds are more likely to develop type 2 diabetes at a younger age:
It is important to be aware of your blood glucose levels and make correct diet choices if you are at an increased risk due to your ethnicity or family history. Prevention is always better than treatment.
Certain medications can disrupt how your body produces insulin and increase blood sugar levels.
For example, steroid (corticosteroid) medications can cause the liver to produce more glucose or reduce the cells’ absorption of glucose, which can increase your chances of developing diabetes.
Other medications that can contribute to diabetes include:
If you are taking any of the above medications and have concerns about the potential side effects, please consult with your doctor.
Some women develop high blood sugar levels during pregnancy, which results in something called gestational diabetes.
The condition can develop at any stage of the pregnancy but is most common in the second and third trimesters.
The hormonal changes of pregnancy can disrupt insulin production. As a result, some women have to make diet changes to help control their blood sugar. In rarer cases, they may also be prescribed medication.
However, things usually return to normal shortly after delivery.
The pancreas is responsible for producing insulin. Therefore, any trauma or damage to the pancreas can increase your chances of developing diabetes if your insulin supply is affected.
The same goes for the removal of the pancreas. Under these circumstances, you will likely have to start taking insulin injections to maintain healthy blood sugar levels.
Some people can put their diabetes into remission by losing weight. If a disease is in remission, it hasn’t necessarily been cured. However, it does mean that signs and symptoms have disappeared and you are much less at risk.
By losing weight, you reduce how much fat is stored around your liver and pancreas. This visceral fat (fat that lies internally around your organs) is what’s considered to be a main contributor to the development of diabetes.
Changes to your diet don’t only improve your chances of weight loss. In some cases, a change in diet can reverse pre-diabetes and even diabetes.
The most important factor when following a diabetes food guide is to eliminate very sugary and starchy foods and to focus on a diet made up of mostly whole foods (with lots of vegetables).
If you usually eat a bacon and egg sandwich for breakfast, consider replacing this with scrambled eggs, bacon medallions and half an avocado. White bread is one of the worst culprits for spiking blood sugar levels.
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