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.
  
Whole milk is the raw, unpasteurized milk obtained from mammals like cows, buffalo, goat, sheep, yak, camel.
  
Origin
Central asian countries like kazakhstan, kyrgyzstan, tajikistan, Middle East
  
East European countries- Bulgaria, Czech Republic, Ukraine