Put on by the BBC, The Food Chain explores the food industry from all angles, including the science of food production, the business of moving food from farms to supermarkets, and the latest health trends.
The series also examines the cultural significance of certain foods, taking an anthropological approach to the topic.
Recent episodes question whether foods need added doses of micro-nutrients (such as iodine in table salt), and what the diets of people who live to be older than 100 have in common.