File photo dated 23/07/21 of empty shelves in the water aisle of the Tesco store at St Rollox in Glasgow. The boss of the Food and Drink Federation has said that the days when UK consumers could expect to pick up nearly whatever product they want whenever they want from supermarket shelves are over. Ian Wright, the body's chief executive, said that a shortage of lorry drivers is in part due to them moving to online retailers and starting to deliver for Amazon and Tesco. Issue date: Friday September 10, 2021. PA Photo. See PA story ECONOMY Shortages. Photo credit should read: Andrew Milligan/PA Wire