What is
Strained yogurt, Greek yogurt, yogurt cheese, labneh, is yogurt which has been strained to remove its whey, resulting in a relatively thick consistency, while preserving yogurt's distinctive, sour taste.
  
Filmjolk is a traditional fermented milk product from Sweden, and a common dairy product in the Nordic countries.
  
Origin
Central asian countries like kazakhstan, kyrgyzstan, tajikistan, Middle East
  
Nordic countries