While there is no doubt that obesity has become a hell lot of concern for countries around the world, a recent study claimed that cutting down the number of calories from regular diet can actually make one live longer and that too bereft of may diseases such as dementia, cancer and Type 2 diabetes. It has been claimed by a team from the Institute of Healthy Ageing at University College London that cutting the intake of calories from food could make things a lot better. The research was done on flies and small animals like mice and rats.

"If you reduce the diet of a rat by 40 per cent it will live for 20 or 30 per cent longer. So we would be talking 20 years of human life", said Dr Matthew Piper, who is making significant contribution in this year's Royal Society Summer Science Exhibition.

Meanwhile, another research from a team from the Buck Institute for Research on Aging in the US also claimed that such limitation in diet increased fat metabolism in the muscle of flies, thereby raising the possibility of their long life.

Despite of all this, Dr. Piper is of the view that there is dire need to extend the research further so that a lot more is being revealed in the context of humans too.