fat-free yogurt (i substituted

Fat-free yogurt, also known as nonfat yogurt, is a fermented dairy product made from milk with virtually all milk fat removed prior to or during fermentation. Produced by culturing milk with specific strains of lactic acid bacteria (primarily Lactobacillus bulgaricus and Streptococcus thermophilus), fat-free yogurt undergoes acidification that coagulates milk proteins while developing its characteristic tangy flavor. The result is a smooth, creamy texture achieved through the protein network rather than fat content, with a flavor profile ranging from mildly tart to intensely sour depending on fermentation time and bacterial culture used. Modern fat-free yogurts often contain stabilizers and thickening agents to replicate the mouthfeel of full-fat varieties.

Fat-free yogurt functions as both a versatile ingredient and standalone food. It serves as a base for smoothies, parfaits, and breakfast bowls, and can replace sour cream or full-fat yogurt in dressings, marinades, and baked goods—though results may differ due to reduced fat content. In savory applications, it's used in Indian raita, Middle Eastern mezze platters, and as a topping for curries and soups. In baking, substitution may require adjusting liquid ratios or adding a small amount of oil to compensate for missing fat. The tangy acidity makes it suitable for marinading proteins and adds brightness to both sweet and savory dishes.