Greek yogurt is a yogurt that has been strained to remove most of its
whey, resulting in a thicker consistency than unstrained yogurt, while
preserving yogurt's distinctive sour taste. Like many types of yogurt,
strained yogurt is often made from milk that has been enriched by boiling
off some of its water content, or by adding extra butterfat and powdered
milk. In Europe and North America, it is often made from low-fat or
fat-free yogurt. In Iceland, a similar product named skyr is produced.
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