Chocolate companies are in the sights of EU antitrust regulators. Ferrero, maker of Kinder, Ferrero Rocher, and Nutella, has revealed that it was the target of “dawn raids” by the European Commission in two EU member states. The company, which also owns Kellogg, said it was fully cooperating with the authorities.

Ruth Prickett graduated from Cambridge University with a BA hons in History and has specialized in business and finance journalism for the past 20 years. She was editor of Financial Management, the magazine...