Blueberries are the most popular fruit in Australia and the most widely consumed fruit in the world.
In the UK they are consumed for their health benefits and also for the flavour.
While the nutrients in blueberries are known for their high levels of fibre and antioxidants, it is their sugar content that is controversial.
“Blueberries are very high in sugar, which has been known to cause heart disease and stroke,” Dr Andrew Gribbin, from the University of Newcastle’s Faculty of Health Sciences, told news.com,au.
Dr Gribbi told news,au that the study was not designed to determine if eating blueberries causes weight gain or not.
The main focus of the study is on whether consuming blueberries may increase the risk of obesity in people who are overweight or obese, he said.
It was also about how much sugar was absorbed into the bloodstream.
But he warned that while the sugars in blueberry juices were high in calories, it was important to keep them in moderation.
He said a single serving of blueberries a day is about the same amount of sugar as two soft drinks a day.
“If you were drinking one drink a day and eating three meals a day, then you’re actually consuming two times as much sugar as you are consuming in one drink,” Dr Gribbins said.
“It’s really important to avoid sugar-sweetened drinks.”
Dr Gubbin said the sugar content of a cup of plain white wine was the same as a can of Coke.
“You could drink it every day, but if you’re not drinking it, it would be like having a single-serving of Coke,” he said