- Frozen yogurt is a frozen dessert made with yogurt and sometimes other dairy products.
- It varies from slightly to much more tart than ice cream, as well as being lower in fat due to the use of milk instead of cream.
Soured milk is a food product, distinguished from spoiled milk, and is a general term for milk that has acquired a tart taste, either through the addition of an acid, such as lemon juice or vinegar, or through bacterial fermentation.