Yogurt

Yogurt or yoghurt ( /ˈjoʊɡərt/ or /ˈjɒɡərt/; other spellings listed below) is a dairy product produced by bacterial fermentation of milk. The bacteria used to make yogurt are known as "yogurt cultures". Fermentation of lactose by these bacteria produces lactic acid, which acts on milk protein to give yogurt its texture and its characteristic tang.