Nuratrim, a new weight loss pill that could burn 380 calories-a-day – 15 times more than normal – according to its maker, goes on sale in UK.

Advanced orders have topped 50,000 as Nuratrim reaches the UK today and it sold out within hours when it launched across the U.S. in October.

Mariah Carey, Kim Kardashian and Jennifer Aniston are reported have used Nuratrim, which contains extracts of liquorice and green coffee to speed up digestion.

Nuratrim’s German creator Dr. Alfred Hasslebacher said: “It has been devised to assist all men and women looking to lose excess weight and control their appetite.

“This optimum formula has been clinically proven to increase energy levels, suppress appetite, and burn fat.”

Mariah Carey, Kim Kardashian and Jennifer Aniston are reported have used Nuratrim, which contains extracts of liquorice and green coffee to speed up digestion

Nuratrim costs £34.95 ($55) for 30 pills and is designed to be taken daily with breakfast.

Over the Christmas period the average people will have had two or three dinner servings, containing 2,300 calories.

With many consuming more than the recommended daily intake it can take three months to shift extra weight gained, according to a study by MSN.

According to product’s makers report, Nuratrim can burn as many calories as a 40 minute run, and the natural ingredient Glucomannan, absorbs water which swells the stomach to keep hunger at bay.

Dr. Alfred Hasslebacher added: “Our extensive research showed how hard it is to achieve your ideal weight and size when the daily demands and pressures of your lifestyle impede on your good intentions.

“Nuratrim is an unique blend of pure ingredients that have thermogenic properties which naturally stimulate the body’s metabolism by mimicking the effects of physical activity.”

Research involving 65 patients of average weight, found Nuratrim increased metabolic rate by 35%, reduced appetite by 78% and burned an additional 20% of fat.

Over an 8 week period 90% of those involved lost a minimum of 14 lbs (7 kg) without changing their diet or lifestyle.