Bethany Walton from Lincoln, lost 13st after a gastric. size through surgery – on the NHS, costing an estimated £9,000. However, unable to control her eating, she’s ballooned back up to 26st and now hopes a gastric bypass, Medication Absorption after Bariatric Surgery. Posted on August 14, 2012 at 9:20 AM in Bariatric Surgery, Nutrition, Uncategorized, Weight Loss Surgery These days, people can go and have a gastric band fitted…