New research suggests that daily consumption of caffeine in coffee, tea or soft drinks increases blood sugar levels for people with Type 2 diabetes and could undermine efforts to control the condition.
Researchers at the Duke University Medical Center in North Carolina, USA, monitored the glucose levels of ten people with diabetes, who drank at least two cups of coffee a day and who were trying to manage their condition through diet, exercise and oral medication.
They were monitored for 72 hours and the study found that when they consumed caffeine their glucose levels went up by 8 per cent.
More research needed
“Although this is interesting research, the study only examines a sample of 10 people for a 72-hour period, which proves very little," said Cathy Moulton, Care Advisor at Diabetes UK.
"More research is needed before we ask people with diabetes to stop drinking coffee.
“Diabetes UK recommends that the best way to control glucose levels is through healthy eating and exercise.”