What kind of product is yogurt?

Yogurt is classified as a thick milk product due to the way it is produced. It is created by fermenting milk with specific bacterial cultures, which thickens the milk and gives yogurt its distinct texture and tangy flavor. The fermentation process also enhances its nutritional profile, increasing its probiotic content, which is beneficial for gut health.

While yogurt is indeed derived from liquid dairy (as it starts as liquid milk before fermentation), the defining characteristic of yogurt is its thick consistency resulting from the fermentation process. Other choices do not accurately represent the nature of yogurt: it is not a meat or vegetable product, as those categories pertain to completely different food groups, while the focus here is on the dairy aspect and the transformation from liquid to a thicker form.