Most studies of olfaction and taste in people with diabetes show impairment. This seems to be worse in complicated diabetes. Several studies have shown an impaired ability to sense sucrose or glucose. This may increase sugar intake, and worsen postprandial hyperglycaemia. Newly-diagnosed patients seem to differ from those with established diabetes. Oral and dental disorders and treatment may alter taste. So can many drugs used in diabetic patients. The ability to smell and taste is vital to the enjoyment of life. More awareness and research are needed to understand how diabetes affects olfaction and gustation. Copyright © 2014 John Wiley & Sons.
