Officially known as halitosis, a foul, sweet or fruity odour on your breath could signal an acute complication of diabetes.
High levels of ketones in the blood are not the only cause of this unusual symptom.
Periodontal disease is another known trigger of fruity-breath in type 1 diabetics and is caused by reduced blood flow to the gums.
Raised glucose levels can also promote bacteria growth, infection and bad breath which could also be to blame for oddly-scented breath.
Any unexplained changes to the scent of your breath should always be raised with a medical professional to rule out the possibility of diabetes.