yoghurt

Yoghurt is a fermented dairy product created by the bacterial fermentation of milk, typically using Lactobacillus bulgaricus and Streptococcus thermophilus as starter cultures. The fermentation process converts lactose into lactic acid, which coagulates milk proteins and gives yoghurt its characteristic tangy flavor and thick, creamy texture. Yoghurt originated in the Balkans and Central Asia, though fermented milk products have been consumed for thousands of years across diverse cultures. Modern yoghurt varies widely in fat content (from nonfat to full-fat), texture (liquid, thick, Greek-style), and flavor, with regional styles including labneh (strained), skyr (Icelandic), and kefir (drink-like). Some yoghurts contain additional probiotic cultures beyond the basic starter strains, marketed for digestive health benefits.

Yoghurt functions as both a primary ingredient and a condiment across global cuisines. In Middle Eastern and Indian cooking, it serves as a marinade base, sauce component, and accompaniment to curries and grain dishes. Greek yoghurt's thick consistency makes it suitable for baking, desserts, and as a sour cream substitute. Yoghurt is fundamental to Turkish meze, Indian raita, and Levantine cooking, where it provides cooling contrast to spiced dishes. As a breakfast staple across Europe, the Levant, and South Asia, it is often paired with fruit, granola, honey, or savory elements like herbs and spices. Yoghurt's acidity also makes it valuable for tenderizing meat in marinades.