Being obese - with deposits of lipids in the abdomen - increases blood pressure beyond normal levels and increases levels of blood lipids.
Body fat also affects the body's ability to use insulin.
Type 2 diabetes is where the body's cells lose their sensitivity to insulin - they no longer respond, or respond less effectively, to the insulin that's produced.
Obesity accounts for 80 to 85% of the risk of type 2 diabetes. Rising obesity is linked with 'western diet' - a diet that includes energy-rich 'fast foods' and an inactive lifestyle.
The bar charts show the increased risk of developing type 2 diabetes associated with people's Body Mass Index (BMI).
There is no cure for type 2 diabetes, but it may be possible to control it by diet and exercise.
The risk of developing cardiovascular disease and type 2 diabetes can be reduced by eating a balanced diet, with unrefined, unprocessed, 'whole foods', and taking regular exercise.