A new variety of rice from the UK is surprisingly low on calories - only 7.7 per 100 grams as compared to 350 for white basmati. Named Slim Rice, it helps you feel full while barely registering on your waistline. Regular boiled rice contains 64 percent water, while precooked Slim Rice is made up of 97 percent water and the Asian root konjac. Some nutritionists claim that vegetable extract konjac, also known as Moyu, can stabilise blood-sugar levels and prevent hunger pangs and over-eating. The unusual product smells strongly of starch and needs to be rinsed at least twice under warm water to remove its distinctive odour. Advocates claim the rice, which is chewier than normal varieties, tricks your brain into thinking you have eaten a full meal. A single portion can create the sensation of being full for up to four hours, the Daily Mail reports. However, Tam Fry from the National Obesity Forum, said: "There are nasty side effects to konjac. It will make you feel fuller but doesn't do much for you. Konjac is an appetite suppressant and people will eat it thinking they will get slim but might not be aware they could be starving themselves of nutrients."