Food Unwrapped S15E01 - Poppy Seeds, Cooking Oil, Ancient Grain Bread

Food Unwrapped returns for a new run, revealing more secrets about our food. Jimmy Doherty finds out if eating too many poppy seeds could make him fail a drugs test. Kate Quilton learns the consequences of tipping your waste cooking oil down the drain. And Matt Tebbutt has a Sicilian bake-off with increasingly popular ancient grain bread.