Malnutrition can cause its own form of diabetes, health experts said Thursday, calling for “type 5 diabetes” to be recognised globally to help fight the disease in countries already struggling with poverty and starvation.

The most common form of diabetes, type 2, can be caused by obesity and occurs when adults become resistant to the hormone insulin. Type 1, mostly diagnosed in childhood, arises when the pancreas does not produce enough insulin.

But diabetes researchers have been tracking another form of the disease, which often appears in people aged under 30. It also affects insulin production but is less severe than type 1.

And rather than being linked to being overweight or obese like type 2, it affects people who are underweight because they do not eat enough.

A paper published in

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