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Type 2 diabetes is the most common type of diabetes, caused by a combination of inadequate production of insulin and an inability of the body to respond fully to insulin (insulin resistance). It is mostly seen in adults, but is increasingly being diagnosed in children and adolescents. Being overweight is a main cause of type 2 diabetes, which is also influenced by lifestyle factors such as poor diet, lack of physical activity, and excessive alcohol consumption22.
In 2017 the International Diabetes Federation estimated that 425 million adults around the world were living with diabetes (types 1 and 2 collectively), and predicted this to increase to 629 million by 204523. In Europe, about 58 million people have diabetes (types 1 and 2), representing 8.8% of the population aged 20-79 years: it is estimated that this figure will reach 66.7 million by 204523. Type 2 diabetes accounts for approximately 90% of cases of diabetes worldwide24.
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