How a small dairy in Laval became the Lactalis empire, world number one with a fierce appetite. The multinational crystallized tensions during farmers' protests, to the point of requiring mediation completed this Friday.

Your President butter, the Galbani mozzarella that you cut into your tomatoes, the Siggi's Icelandic yogurt that you have for breakfast. All of this is in the hand of an industrialist, and his name never appears on the packaging of the products it sells.