Contrary to the popular beliefs about the health benefits of fruit juices, the UK government's leading adviser on obesity has said people should stop taking orange juice due to high sugar content in it.

Professor Susan Jebb, head of diet and obesity research at the Medical Research Council's Human Nutrition Research unit in Cambridge, UK, says orange juice has as much sugar as Coca-Cola and warned that fruit juice should not be counted as part of a healthy five-a-day diet.

"Fruit juice isn't the same as intact fruit and it has got as much sugar as many classical sugar drinks. It is also absorbed very fast so by the time it gets to your stomach your body doesn't know whether it's Coca-Cola or orange juice, frankly," she told The Sunday Times.

The development comes after the health experts urged the food industry to cut 30 per cent from processed in the UK while warning that sugar has become as dangerous as alcohol or tobacco.

They also claim that reduction in sugar could shave 100 calories from each person's daily intake and reverse the UK's growing obesity epidemic.

While many branded fruit juice contain as little as 10 percent fruit juice with lots of added sugar, several research has linked intake of sugary sodas, fruit juices with an elevated risk of obesity, heart disease, and type 2 diabetes.

Professor Susan Jebb, who said she had herself stopped drinking orange juice also asked people to dilute it with water and drink if they cannot quit juice.

"I have to say it is a relatively easy thing to give up. Swap it and have a piece of real fruit. If you are going to drink it, you should dilute it", she added.