Clive Black, from Shore Capital, said bad weather in Spain and Morocco had caused a perfect storm for British retailers who rely heavily on those countries for food in the winter months.
Therese Coffey made the warning during environment, food and rural affairs questions in the House of Commons today amid empty supermarket shelves across Britain.
Restaurateurs said today they re being forced to reconsider their menus and ingredient lists as it becomes increasingly difficult to purchase fresh produce.