Model Danielle Lloyd has told how she suffered from the condition while pregnant with her fourth child and was told to have bed rest.
What are the treatments for diabetes?
As well as being advised to eat a healthy diet and take more exercise, both forms of diabetes can be treated using different drugs.
However, whereas a healthier lifestyle can often reverse the symptoms in people with type 2 diabetes, it does not have the same dramatic effect on type 1 diabetes.
Every person diagnosed with type 1 diabetes will have to take insulin via injection or a pump.
Some type 2 diabetics will also need insulin, though it is less common.
Those diagnosed with type 2 diabetes will sometimes need to take drugs, alongside living a healthier lifestyle.
This medication is designed to lower blood sugar levels, but cannot cure the disease.
Type 2 diabetes is a progressive condition, so worsens over time, meaning some people will need more medication to control it as it progresses.
To find out more, visit Diabetes UK.