More than 800 million people around the world have diabetes, study finds

Scientists say increase from 1990 to 2022 was largest in low- and middle-income countries and lack of treatment concerning'

• Why have rates doubled over the last 30 years and what can be done?

The number of people with diabetes has doubled over the past 30 years to more than 800 million worldwide, according to a groundbreaking international study.

Global analysis published in the Lancet found that rates of diabetes in adults doubled from about 7% to about 14% between 1990 to 2022, with the largest increase in low and middle-income countries.