Greek yoghurt is a yoghurt that has been strained to remove
most of its whey ,resulting in a thicker consistency than
unstrained yoghurt 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 with low-fat or
fat-free yogurt. In Iceland a similar
product named skyr
is produced.