INDORE: Wonder what Indore jail feeds its inmates... Over 70% of them have gained weight since being thrown behind bars -from a modest 1kg to a pyjama-popping 30 kg. In fact, the food cooked by prisoners is so good that jail officials can't help dropping in for lunch or dinner.This weight wonder was revealed during a fitness check at central jail . Of the 1,322 prisoners, only 330 have lost weight since being imprisoned and jail food has had no effect at all on 5% -perhaps those are the types with metabolism to digest stones . The majority of prisoners, however, has gained weight The secret? Hard-as-nails convicts, in for long terms, feeling quite at home. And a batch of self-taught cooks keen to make it feel like home.“A comparative analysis of prisoners' weight before and after being brought to prison was conducted recently and the results say that 70% have put on weight,“ said Ramesh Chandra Arya, jail superintendent.Officials attribute this to the fact that convicted felons and those serving life terms “have become very comfortable in the jail environment“. “Those who are sent to jail are in depression for the first few months or perhaps a year. But when they realise that they have to spend their lives inside these walls, they are more accepting and behave better. This may lead to an increase in weight,“ said Arya. Also, breakfast, lunch and dinner are served on proper timings. This too, may be a factor, he added.“The inmates have had training in cooking and have become seasoned chefs. Even I have lunch on the jail premises on several occasions,“ he said. Surprised by the results, the authorities are running a BMI (Body Mass Index) check of all prisoners and give them individual diet charts so that they get fit, not fat.“We have doctors and several inmates have been put on special diet, based on their needs and body requirements. They are also given fruits and eggs from time to time ,“ said Arya. Sources say prison authorities have sought funds from government to include more options on the menu for inmates in the menu.