Overweight soldiers who face being discharged have been given Fitbit bracelets to help them lose weight.The devices, which cost around £100 each, have been given to troops who risk being thrown out of the Army for failing military fitness tests to help them shape up.One infantry unit is believed to have given every overweight soldier in the battalion one of the bracelets, which track the distance the wearer walks and calculates how many calories have been burned. A Fitbit braceletCredit:AP Photo/AJ Mast, File Civilian fitness instructors have also been hired to help troops who are too fat for the regular training sessions.The Ministry of Defence recently revealed it had sacked a 28-stone soldier for being too big to fight. Around 25,000 soldiers, or 18 per cent of the Armed Forces, are overweight or obese, with a further 1,000 suffering from type 2 diabetes.Between 2011 and 2014, more than 32,000 soldiers have failed the basic fitness test, and 60 troops have been discharged for being obese since 2002.However, some have questioned the expense involved in issuing Fitbits to soldiers.Speaking to the Mail on Sunday, a source said: “It’s part of a soldier’s personal responsibility to make sure he stays in shape. “The Army shouldn’t be spending extra money on fancy pieces of kit to help a soldier lose weight. If he or she is too fat to fight, they should be thrown out.”Senior officers have set up “fat clubs” in units where a number of troops are overweight to encourage them to slim down.Around 300 soldiers have been given diet pills, while more than 20 have had liposuction funded by the taxpayer.The problem has been blamed on the food served in military cookhouses, which includes full English breakfasts and main meals served with chips and puddings.The MoD said: “Over 95 per cent of our personnel routinely pass fitness tests, but a wearable technology device can be a useful tool for those who need to track injury-recovery and fitness.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.