Grapefruit juice 'could be the key to weight loss'

Grapefruit juice 'could be the key to weight loss'

Drinking grapefruit juice instead of water could be the key to weight loss, according to a study by the University of California. The research published in Plos One, found that mice put on the same high-fat diet gained far less weight if they were given the juice to drink instead of water.

The study also found improved levels of blood sugar and insulin among those given the juice, protecting against diabetes. Scientists said the juice appeared to work as well as the prescription drug metformin which is used to treat diabetes. Grapefruit has long been a feature of fad diets. But the juice did not contain pulp, and researchers said it was not clear why the grapefruit juice appeared to help keep the weight off.

The study found that mice fed a high-fat diet gained 18 percent less weight when they drank clarified, no-pulp grapefruit juice compared with a control group of mice that drank water. Juice-drinking mice also showed improved levels of glucose, insulin and a type of fat called triacylglycerol compared with their water-drinking counterparts.

The study authors randomly divided mice into six groups, including a control group that drank only water. The researchers also added glucose and artificial sweeteners to the control group's water so that it would match the calorie and saccharin content of the grapefruit juice.

At the end of the study period, the mice that drank diluted grapefruit juice not only gained less weight than their control counterparts, they also had a 13 to 17 percent decrease in blood glucose levels and a threefold decrease in insulin levels.

Some mice were fed a diet that was given a 60 percent fat, while others were put on a 10 per cent fat diet for 10 days. The study did not find as big an impact on mice that ate a low-fat diet.

by Laura Donnelly,

The Telegraph, Wednesday 08 October 2014

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