By Lauren Harte & Joseph Wilkes An inspiring grandfather lost so much weight that he reversed his Type 2 diabetes \- and he wants you to believe you can too. Peter Jackson has revealed how winning his battle against Type 2 diabetes and shedding five stone has changed his life, leaving him feeling on top of the world, or as he puts it – “like the King of Saintfield”. It all follows his involvement in a new programme at Ulster Hospital aimed at helping people who are overweight and newly diagnosed with diabetes. Even at 65, Peter took the bull by the horns and signed up for the programme last Au…