sentences:  Since 2015, Arla has sold its own skyr product marketed as "Icelandic style yogurt".Strained yogurt (often marketed as "Greek yogurt") has become popular in the United States and Canada, where it is often used as a lower-calorie substitute for sour cream or crème fraîche.Celebrity chef Graham Kerr became an early adopter of strained yogurt as an ingredient, frequently featuring it (and demonstrating how to strain plain yogurt through a coffee filter) on his eponymous 1990 cooking show, as frequently as he had featured clarified butter on "The Galloping Gourmet" in the late 1960s.