An obese mum lost 11st stone despite working at McDonalds - thanks to weight loss surgery which took just 28 minutes. Christina Rodriguez, 57, piled on the pounds during a stressful divorce a decade ago and turned to comfort eating to help her cope. She tipped the scales at 21 stone - only fiting into size 26 clothes - and her fondness for cheese, chips and pies was putting her health at risk. In desperation, Christina went to her GP to see if the NHS would fit her with a gastric band. The request was rejected, but Christina decided to fork out £6,000 on the 28-minute surgery.