McVities digestive biscuit

'''McVitie's biscuits have been enjoyed by generations for over 100 years. The first ever digestive biscuit was created by a new young employee, Alexander Grant. The name Digestive was derived from its high content of baking soda as an aid to food digestion'''. Over one hundred years later the McVitie's Digestive remains a firm favourite and is the highest selling brand in the everyday biscuit segment.